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Carbon dioxide (CO2) emissions from fossil fuels and cement will rise around 1.1% in 2025, reaching a record 38.1bn tonnes of CO2 (GtCO2), according to the latest figures from the Global Carbon Project

However, falling land-use emissions means that global CO2 emissions in 2025 will remain relatively unchanged compared to 2024 levels.

The 20th edition of the annual Global Carbon Budget report, published today, also finds that the land carbon sink – the portion of human-caused CO2 emissions absorbed by plants and soils – appears to have recovered to its pre-El Niño strength after two unusually weak years. 

However, research published alongside the report by the same team also suggests that climate change has caused a long-term decline in land and ocean carbon sinks, with sinks being about 15% weaker over the past decade than they would have been without climate impacts.

The study, published in Nature, finds that the decline of carbon sinks has contributed about 8% to the rise in atmospheric CO2 concentration since 1960.

The 2025 Global Carbon Budget report also estimates that:

  • Emissions in China and India are projected to grow much less in 2025 compared to the past decade, while emissions in the US and EU are projected to grow this year after years of decline.
  • Global CO2 emissions from land-use change are expected to decrease by nearly 10% in 2025, driven by reductions in deforestation and forest degradation in South America. 
  • Total CO2 emissions – fossil and land use – have grown more slowly over the past decade (0.3% per year on average) compared to the previous decade (1.9% per year). 
  • The remaining carbon budget to limit global warming to 1.5C is virtually exhausted and is equivalent to only four years of current emissions. Carbon budgets to limit warming to 1.7C and 2C would similarly be used up in 12 and 25 years, respectively.
  • The concentration of CO2 in the atmosphere is set to reach 425.7 parts per million (ppm) in 2025, 2.3ppm above 2023 and 52% above pre-industrial levels.

(For detailed coverage of previous editions of the report, see Carbon Brief’s coverage for 2024, 2023 and 2022.)

Global emissions remain flat

The Global Carbon Budget (GCB) finds that total global CO2 emissions in 2025 – including those from fossil fuels and land use – are projected to remain approximately flat at 42.2GtCO2, falling by a negligible -0.04% compared to last year. 

This means 2025 is effectively tied with 2024 as the highest global CO2 emissions on record.

Flat total CO2 emissions in 2025 reflect a combination of continued rising emissions from fossil fuel and industry and declining emissions from land-use change. Fossil CO2 emissions rose 1.1% to 38.1GtCO2, while land-use emissions declined by -9.8% to 4.1GtCO2 (albeit with large uncertainties).

The figure below shows the 2025 global CO2 emissions update (red solid line) alongside 2024 (dark blue dotted), 2023 (mid blue dotted) 2022 (light blue dotted), 2021 (light grey dotted) and 2020 (dark grey dotted). The shaded area indicates the uncertainty around the new 2025 budget. 

(Each year, the GCB is updated to include the latest data as well as improvements to modelling sources and sinks, resulting in some year-to-year revisions to the historical record.)

Annual total global CO2 emissions – from fossil and land-use change – between 1959-2024 for the 2020, 2021, 2022, 2023, 2024 and 2025 versions of the Global Carbon Project’s Global Carbon Budget, in GtCO2.
Annual total global CO2 emissions – from fossil and land-use change – between 1959-2024 for the 2020, 2021, 2022, 2023, 2024 and 2025 versions of the Global Carbon Project’s Global Carbon Budget, in GtCO2. Shaded area shows the estimated one-standard-deviation uncertainty for the 2025 budget. Data from the Global Carbon Project. Chart by Carbon Brief.

The 2025 figures are notably higher than those in the prior five GCB reports, reflecting an upward revision in historical land-use emissions. (This is discussed in more detail in the land-use emissions section below.)

Total global CO2 emissions have notably flattened in the past decade (2014-25), growing at only 0.3% per year compared to the 1.9% rate of growth during the prior decade (2004-13) and the longer-term average growth rate of 1.6% over 1959-2014.

This apparent flattening is due to declining land-use emissions compensating for continued – but slow – increases in fossil CO2 emissions. Fossil emissions grew around 0.2GtCO2 per year over the past decade, while land-use emissions decreased by a comparable amount.

However, despite the emissions plateau, there is still no sign of the rapid and deep decrease in CO2 emissions needed to reach net-zero and stabilise global temperatures in-line with the Paris Agreement temperature goal.

If global emissions remain at current levels, the remaining carbon budget to limit warming to 1.5C (with a 50% chance) will be rapidly exhausted.

(The carbon budget is the total amount of CO2 that scientists estimate can be emitted if warming is to be kept below a particular temperature threshold. Earlier this year, the Indicators of Global Climate Change report estimated the remaining carbon budget had declined by three-quarters between the start of 2020 and the start of 2025.)

With human-caused global warming sitting at around 1.36C above pre-industrial levels in 2024, the remaining budget for 1.5C is 170GtCO2, equivalent to four years of current emissions. 

The GCB report finds that the remaining carbon budgets to limit warming to 1.7C and 2C have been reduced to 525GtCO2 (12 years at current emissions levels) and 1,055GtCO2 (25 years), respectively.

Global fossil CO2 emissions also grew more slowly in the past decade (0.8% per year) compared to the previous decade (2.1%). This was driven by the continued decarbonisation of energy systems – including a shift from burning coal to gas and replacing fossil fuels with renewables – as well as slightly weaker global economic growth during the past decade.

The figure below breaks down global emissions (dark blue line) in the 2025 budget into fossil (mid blue) and land-use (light blue) components. Fossil CO2 emissions represent the bulk of total global emissions in recent years, accounting for approximately 90% of emissions in 2025 (compared to 10% for land use). This represents a large change from the first half of the 20th century, when land-use emissions were approximately the same as fossil emissions.

Global fossil emissions include CO2 emitted from burning coal, oil and gas, as well as the production of cement. However, to determine total fossil emissions, the Global Carbon Budget also subtracts the cement carbonation sink – CO2 slowly absorbed by cement once it is exposed to the air – from fossil emissions.

Global CO2 emissions separated out into fossil and land-use change components between 1959 and 2025.
Global CO2 emissions separated out into fossil and land-use change components between 1959 and 2025. Data from the Global Carbon Project. Chart by Carbon Brief.

Global emissions can also be expressed on a per-capita basis, as shown in the figure below.

While it is ultimately total global emissions that matter for the Earth’s climate – and a global per-capita figure glosses over a lot of variation among, and within, countries – it is noteworthy that global per-capita fossil emissions peaked in 2012 and have been slightly declining in the years since.

Global per-capita CO2 emissions over 1959-2025.
Global per-capita CO2 emissions over 1959-2025. Data from the Global Carbon Project. Chart by Carbon Brief.

Land-use emissions continue downward trend

Global land-use emissions stem from deforestation, forest degradation, loss of peatlands and harvesting trees for wood. They averaged around 5.0GtCO2 over the past decade (2015-24) and the Global Carbon Budget provides an initial projection for 2025 of 4.1GtCO2.

This represents a 0.5GtCO2 decrease in land-use emissions relative to 2024. The GCB report suggests that this was largely driven by a combination of reductions in deforestation and forest degradation in South America and by the end of the dry 2023-24 El Niño conditions.

Overall, land-use emissions have decreased by around 32% compared to their average in the 2000s, with a particularly large drop in the past decade. This decline is statistically significant and is due both to decreasing deforestation and increasing levels of reforestation and afforestation globally.

Three countries – Brazil, Indonesia and the Democratic Republic of the Congo (DRC) – collectively contribute approximately 57% of the global land-use emissions. In the past, China has been a meaningful contributor to land-use emissions, but in recent years its land-use emissions have turned net-negative as more trees have been planted than cut down.

The figure below shows changes in emissions over time in these countries, as well as land-use emissions in the rest of the world (grey).

Annual CO2 emissions from land-use change by major emitting countries and the rest of world over 1959-2024.
Annual CO2 emissions from land-use change by major emitting countries and the rest of world over 1959-2024. Country-level land-use change emissions are not yet available for 2025. Data from the Global Carbon Project. Chart by Carbon Brief.

Historical land-use emissions have been revised upward in the 2025 GCB report compared to prior estimates. This reflects a combination of two factors:

  • The discontinuation of one of the four bookkeeping models that GCB has historically relied on for land-use emissions estimates. This model tended to show lower land-use emissions than the others.
  • The inclusion of the impacts from CO2 fertilisation on global biomass densities. Because forests have higher biomass densities now than in the past, due to increasing CO2, this tends to increase the estimate of land-use emissions for recent years.

Fossil-fuel CO2 hits record highs

Global emissions of fossil CO2 – including coal, oil, gas and cement – increased by around 1.1% in 2025, relative to 2024, with an uncertainty range of 0.2-2.2%. This represents a new record high and surpasses the prior record set in 2024.

The figure below shows global CO2 emissions from fossil fuels, divided into emissions from major emitting countries including China (dark blue shading), the US (mid blue), the EU (light blue), India (light blue) and the remainder of the world (grey).

Annual fossil CO2 emissions by major countries and the rest of the world over 1959-2025.
Annual fossil CO2 emissions by major countries and the rest of the world over 1959-2025. This data excludes the cement carbonation sink as national-level values are not available, meaning that the sum of values reported here are slightly higher than the global average numbers. Data from the Global Carbon Project. Chart by Carbon Brief.

China represents 32% of global CO2 emissions today. Its 2025 emissions are projected to increase by a relatively small 0.4% (with an uncertainty range of -0.9% to 2%), driven by a small rise in emissions from coal (0.3%), a modest rise in gas (1.3%) and a larger rise in oil (2.1%).

Given the uncertainty range, a decrease in Chinese emissions is also a possibility, but this will not be confirmed until the full 2025 data is available.

Similarly, recent analysis for Carbon Brief found that China’s emissions were “finely balanced between a small fall or rise” in 2025. However, it said that a drop in the full-year total became more likely after a 3% decline in September. (The Global Carbon Project estimates are based on data covering January through to August, which point towards a small rise in 2025.)

Whether China’s emissions see small rise or fall in 2025, the outcome will be due to moderate growth in energy consumption combined with an extraordinary growth in renewable power generation. This would represent the second year in a row where Chinese emissions growth was well below the average rate over the past decade.

The US represents 13% of global emissions and emissions in 2025 are projected to increase by 1.9% (-0.2 to +4.1%) compared with 2024. This marks a reversal from recent trends in declining CO2 emissions. 

The projected growth of emissions in the US is likely driven by a combination of three factors: a colder start to the year after a mild 2024, which led to greater heating requirements, higher gas prices, which led to more coal being used in power generation, as well as an increase in total demand for electricity.

US emissions from coal are expected to increase by a substantial 7.5% in 2025, emissions from both oil and gas by a more modest 1.1% and emissions from cement to fall by -8.0%.

While policies enacted by the current US administration may increase CO2 emissions going forward, their impact on national emissions levels in 2025 were likely relatively modest compared to other factors.

India represents 8% of global emissions. In 2025, its emissions are projected to increase by 1.4% (-0.3% to +3.1%) on 2024 levels, significantly below recent trends.

An early monsoon with the highest-ever May rainfall substantially reduced cooling requirements in May and June, the hottest months of the year. Strong growth or renewables – particularly solar – has also helped limit the growth of Indian emissions. 

Indian emissions from coal are expected to grow 1.7%, with oil growing 0.1%, gas shrinking by -6.4% and cement growing by 9.9%.

The EU represents 6% of global emissions. Its emissions are projected to increase by 0.4% in 2025, with an uncertainty range of -2.1 to +2.8%. This represents a divergence from a past decline in emissions (albeit with large uncertainties).

EU emissions from coal are expected to decline by -0.3%, whereas emissions from oil and gas are projected to increase by 0.6% and 0.9%, respectively. Cement emissions are expected to fall by -4.1%.

The increase in EU emissions is in part from weather-related low hydropower and wind generation which – despite increases in solar – have led to an increase in electricity generation from gas. In addition, a relatively cold February led to increased use of natural gas for space heating.

International aviation and shipping (included in the “rest of world” in the chart above) are responsible for 3% of global emissions. They are projected to increase by 6.8% for aviation, but remain flat for international shipping. This year will be the first time that aviation emissions have exceeded pre-Covid levels.

The rest of the world (excluding aviation) represents 38% of global emissions. Emissions are expected to grow by 1.1% in 2025 (ranging from -1.1% to +3.3%), with increases in emissions from coal (1%), oil (0.5%), gas (1.8%) and cement (2.4%).

The total emissions for each year over 2022-25, as well as the countries and regions that were responsible for the changes in absolute emissions, are shown in the figure below.

Annual emissions for 2022, 2023, 2024 and estimates for 2025 are shown by the black bars. The smaller bars show the change in emissions between each set of years, broken down by country or region – the US (dark blue), EU (mid blue), China (light blue), India (pale blue) and the rest of the world (grey). Negative values show reductions in emissions, while positive values reflect emission increases.

Annual global CO2 emissions from fossil fuels
Annual global CO2 emissions from fossil fuels (navy blue bars) and drivers of changes between years by country (smaller bars), excluding the cement carbonation sink as national-level values are not available. Negative values indicate reductions in emissions. Note that the y-axis does not start at zero. Data from the Global Carbon Project. Chart by Carbon Brief.

The US represented a large part of the rise in global fossil-fuel emissions in 2025. US emissions increases over 2024-25 contributed about 40% of the total global increase – more than the EU, China and India contributions combined.

The Global Carbon Project notes that emissions have declined over the past decade (2015-24) in 35 nations, which collectively account for 27% of global emissions. This is up from 18 countries during the prior decade (2005-14).

The decrease in emissions in those countries comes despite continued domestic economic growth and represents a long-term “decoupling” of CO2 emissions and the economy.

The carbon intensity of energy has consistently decreased over the past decade in China, the US, the EU – and, to a lesser extent, globally.

However, peaking CO2 emissions requires that the rate of decarbonisation exceeds the growth in energy demand. This has happened in some regions, including the US and EU, but not yet globally.

Modest growth in emissions from coal, oil, gas and cement

Global fossil-fuel emissions primarily result from the combustion of coal, oil and gas.

In 2025, coal is responsible for more emissions than any other fossil fuel, representing approximately 42% of global fossil-fuel CO2 emissions. Oil is the second largest contributor at 33% of fossil CO2, while gas comes in at 21%.

The production of cement is responsible for around 3.8% of global emissions, but this is reduced to 1.9% once the carbonation sink – the drawdown of atmospheric CO2 by concrete – is taken into account.

These percentages reflect both the amount of each fossil fuel consumed globally, but also differences in CO2 intensities. Coal results in the most CO2 emitted per unit of heat or energy produced, followed by oil and gas.

The figure below shows global CO2 emissions from different fuels over time, covering coal (dark blue), oil (mid blue) and gas (light blue), as well as cement production (pale blue) and other sources (grey).

While coal emissions increased rapidly in the mid-2000s, they have largely flattened since 2013. However, coal use increased significantly in 2021 and then more modestly in the subsequent four years.

Annual CO2 emissions by fossil fuel over 1959-2025.
Annual CO2 emissions by fossil fuel over 1959-2025. Data from the Global Carbon Project. Chart by Carbon Brief.

Global emissions from coal increased by 0.8% in 2025 compared to 2024, while oil emissions increased 1.0% and gas emissions increased by 1.3%.

Despite setting a new record this year, global coal use is only 6% above 2013 levels – a full 13 years ago. By contrast, during the 2000s, global coal use grew at a rate of around 4% every single year.

The figure below shows the total emissions for each year over 2022-25 (black bars), as well as the absolute change in emissions for each fuel between years.

Annual global CO2 emissions from fossil fuels (black bars) and drivers of changes between years by fuel.
Annual global CO2 emissions from fossil fuels (black bars) and drivers of changes between years by fuel. Negative values indicate reductions in emissions. Note that the y-axis does not start at zero. Data from the Global Carbon Project. Chart by Carbon Brief.

Global oil emissions were suppressed for a few years after the 2020, but rebounded to pre-pandemic levels as of 2024 and have continued to grow in 2025.

This reflects that, despite falling sales of internal combustion engine vehicles, not enough electric vehicles (EVs) have yet been sold to result in peak oil demand.

The global carbon budget

Every year, the Global Carbon Project provides an estimate of the overall “global carbon budget”. This is based on estimates of the release of CO2 through human activity and its uptake by the oceans and land, with the remainder adding to atmospheric concentrations of the gas.

(This differs from the commonly used term “remaining carbon budget”, which refers to the amount of CO2 that can be released while keeping warming below global limits of 1.5 or 2C.)

The most recent budget, including estimated values for 2025, is shown in the figure below.

Values above zero represent sources of CO2 – from fossil fuels and industry (dark blue shading) and land use (mid blue) – while values below zero represent carbon sinks that remove CO2 from the atmosphere. Any CO2 emissions that are not absorbed by the oceans (light grey) or land vegetation (mid grey) accumulate in the atmosphere (dark grey). In addition, a dashed black line is shown to represent the expected sum of sinks based on estimated emissions.

Annual global carbon budget of sources and sinks over 1959-2025.
Annual global carbon budget of sources and sinks over 1959-2025. Fossil CO2 emissions include the cement carbonation sink. Note that the budget does not fully balance every year due to remaining uncertainties, particularly in sinks; the imbalance can be seen by the difference between the sum of the sinks and the sum of the sources (dashed black line). Data from the Global Carbon Project. Chart by Carbon Brief.

Over the past decade (2015-24), the world’s oceans have taken up approximately 29% of total human-caused emissions, or around 11.8GtCO2 per year.

The ocean CO2 sink has been relatively flat since 2014 after growing rapidly over the prior decades, reflecting the flattening of global emissions during that period.

This estimate for carbon sinks has been revised up from 26% in prior versions of the GCB, reflecting a major update to carbon budgets driven by new data and modelling of carbon sink behavior.

The land sink takes up around 21% of global emissions, or 8.7GtCO2 per year on average over the past decade – discussed in more detail in the section below. This is down from 29% in prior budgets.

The atmosphere continues to accumulate the bulk of human-caused CO2 emissions, with about 49% going into the atmosphere on average over the past decade – a rate of 20.4GtCO2 per year.

The growth rate of atmospheric CO2 in 2025 is expected to be around 2.3ppm, which is a bit below the decadal average rate of 2.6ppm over the past decade (2015-24). This is well below the record-setting rise of 3.7ppm in 2024, which was primarily driven by the effect of the 2023-24 El Niño conditions weakening the land sink.

Atmospheric CO2 concentrations are set to reach an annual average of 425.7ppm in 2025, representing an increase of 52% above pre-industrial levels of 280ppm.

There remains an unusual imbalance in the carbon budget in 2024, where the sum of the sinks is notably larger than estimated emissions. This can be seen in the figure above, where the dashed line is below the shaded area.

Budget imbalances are not unprecedented – there are large uncertainties in both emissions data and sink estimates. But the rise in the amount of CO2 accumulating in the atmosphere in 2024 is larger than would be expected based on emissions.

There are a number of potential explanations for this 2024 imbalance. The land cover data for 2024 is not yet complete and it is possible that some fire emissions data might be missing from the record. This might result in either higher land-use emissions or lower land sinks than currently estimated.

Alternatively, it could be due to the CO2 growth rate – captured by surface stations managed by the US National Atmospheric and Oceanic Administration (NOAA) – being slightly high. CO2 records for 2024 from these stations are higher than those obtained from satellite-based sensors, though it remains unclear which provides the most accurate measurement.

A declining, but not collapsing, land sink

After an usually weak land carbon sink in 2023, there were a number of media articles about its potential collapse.

For example, in October 2024, the Guardian wrote that “the sudden collapse of carbon sinks was not factored into climate models – and could rapidly accelerate global heating”. 

The truth is a bit more complicated. While the impending collapse of the land carbon sink has been greatly exaggerated, there is growing evidence of a long-term weakening of both the land and ocean carbon sinks due to human activity. 

And while the land sink has recovered to its pre-El Niño strength in 2025, aided by relatively low global fire CO2 emissions, it will continue to gradually weaken as global temperatures rise. This is not unexpected – scientists have long foreseen a weaker carbon sink in a warmer world.

A weaker land sink will contribute to higher global temperatures in the future as more CO2 emissions from burning fossil fuels and land use change will accumulate in the atmosphere.

The figure below shows the percentage of human emissions absorbed by the land sink in every year since 1959, with a recovery upwards in 2025 after two relatively low years.

Percentage of global CO2 emissions (land use and fossil) taken up by the land sink each year.
Percentage of global CO2 emissions (land use and fossil) taken up by the land sink each year. Data from the Global Carbon Project. Chart by Carbon Brief.

In a study published in Nature alongside the release of the 2025 Global Carbon Budget, the same team of researchers provide a detailed estimate of exactly how the land and ocean sinks have changed as a result of human activity.

The research finds that the land and ocean sinks are 25% smaller and 7% smaller, respectively, than they would have been without the effects of climate change over 2015-24.

This amounts to a nearly 20% reduction in the efficacy of current global carbon sinks – that is, both the land and ocean – and a 15% reduction compared to how large they would be without the effects of climate change.

The figure below, from the new paper, shows the impact of climate change on the ocean sink (blue), the land sink (green) and atmospheric CO2 concentrations (grey) since 1960.

Impact of climate change on the land sink
Impact of climate change on the land sink (panel a), the ocean sink (panel b) and their cumulative effect on atmospheric CO2 concentrations (panel c). Source: Friedlingstein et al. (2025).

The weakening of carbon sinks due to human activity has led to an increase of atmospheric CO2 of more than 8ppm since 1960. The combined effects of climate change and deforestation have turned tropical forests in south-east Asia and in large parts of South America from CO2 sinks to sources.

And these sinks will likely continue to weaken as long as atmospheric CO2 concentrations continue to rise and the world continues to warm. There are a wide range of estimates of carbon cycle feedbacks among climate models, but a large carbon cycle feedback could result in a few tenths of a degree of future warming.

The post Analysis: Fossil-fuel CO2 emissions to set new record in 2025, as land sink ‘recovers’ appeared first on Carbon Brief.

Analysis: Fossil-fuel CO2 emissions to set new record in 2025, as land sink ‘recovers’

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Heatwaves driving recent ‘surge’ in compound drought and heat extremes

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Drought and heatwaves occurring together – known as “compound” events – have “surged” across the world since the early 2000s, a new study shows. 

Compound drought and heat events (CDHEs) can have devastating effects, creating the ideal conditions for intense wildfires, such as Australia’s “Black Summer” of 2019-20 where bushfires burned 24m hectares and killed 33 people.

The research, published in Science Advances, finds that the increase in CDHEs is predominantly being driven by events that start with a heatwave.

The global area affected by such “heatwave-led” compound events has more than doubled between 1980-2001 and 2002-23, the study says.

The rapid increase in these events over the last 23 years cannot be explained solely by global warming, the authors note.

Since the late 1990s, feedbacks between the land and the atmosphere have become stronger, making heatwaves more likely to trigger drought conditions, they explain.

One of the study authors tells Carbon Brief that societies must pay greater attention to compound events, which can “cause severe impacts on ecosystems, agriculture and society”.

Compound events

CDHEs are extreme weather events where drought and heatwave conditions occur simultaneously – or shortly after each other – in the same region.

These events are often triggered by large-scale weather patterns, such as “blocking” highs, which can produce “prolonged” hot and dry conditions, according to the study.

Prof Sang-Wook Yeh is one of the study authors and a professor at the Ewha Womans University in South Korea. He tells Carbon Brief:

“When heatwaves and droughts occur together, the two hazards reinforce each other through land-atmosphere interactions. This amplifies surface heating and soil moisture deficits, making compound events more intense and damaging than single hazards.”

CDHEs can begin with either a heatwave or a drought.

The sequence of these extremes is important, the study says, as they have different drivers and impacts.

For example, in a CDHE where the heatwave was the precursor, increased direct sunshine causes more moisture loss from soils and plants, leading to a drought.

Conversely, in an event where the drought was the precursor, the lack of soil moisture means that less of the sun’s energy goes into evaporation and more goes into warming the Earth’s surface. This produces favourable conditions for heatwaves.

The study shows that the majority of CDHEs globally start out as a drought.

In recent years, there has been increasing focus on these events due to the devastating impact they have on agriculture, ecosystems and public health.

In Russia in the summer of 2010, a compound drought-heatwave event – and the associated wildfires – caused the death of nearly 55,000 people, the study notes.

Saint Basil's Cathedral, on Red Square, in Moscow, was affected by smog during the fires in Russia in the summer of 2010.
Saint Basil’s Cathedral, on Red Square, in Moscow, was affected by smog during the fires in Russia in the summer of 2010. Credit: ZUMA Press, Inc. / Alamy Stock Photo

The record-breaking Pacific north-west “heat dome” in 2021 triggered extreme drought conditions that caused “significant declines” in wheat yields, as well as in barley, canola and fruit production in British Columbia and Alberta, Canada, says the study.

Increasing events

To assess how CDHEs are changing, the researchers use daily reanalysis data to identify droughts and heatwaves events. (Reanalysis data combines past observations with climate models to create a historical climate record.) Then, using an algorithm, they analyse how these events overlap in both time and space.

The study covers the period from 1980 to 2023 and the world’s land surface, excluding polar regions where CDHEs are rare.

The research finds that the area of land affected by CDHEs has “increased substantially” since the early 2000s.

Heatwave-led events have been the main contributor to this increase, the study says, with their spatial extent rising 110% between 1980-2001 and 2002-23, compared to a 59% increase for drought-led events.

The map below shows the global distribution of CDHEs over 1980-2023. The charts show the percentage of the land surface affected by a heatwave-led CDHE (red) or a drought-led CDHE (yellow) in a given year (left) and relative increase in each CDHE type (right).

The study finds that CDHEs have occurred most frequently in northern South America, the southern US, eastern Europe, central Africa and south Asia.

Charts showing spatial and temporal occurrences over study period
Spatial and temporal occurrence of compound drought and heatwave events over the study period from 1980 to 2023. The map (top) shows CDHEs around the world, with darker colours indicating higher frequency of occurrence. The chart in the bottom left shows how much land surface was affected by a compound event in a given year, where red accounts for heatwave-led events, and yellow, drought-led events. The chart in the bottom right shows the relative increase of each CDHE type in 2002-23 compared with 1980-2001. Source: Kim et al. (2026)

Threshold passed

The authors explain that the increase in heatwave-led CDHEs is related to rising global temperatures, but that this does not tell the whole story.

In the earlier 22-year period of 1980-2001, the study finds that the spatial extent of heatwave-led CDHEs rises by 1.6% per 1C of global temperature rise. For the more-recent period of 2022-23, this increases “nearly eightfold” to 13.1%.

The change suggests that the rapid increase in the heatwave-led CDHEs occurred after the global average temperature “surpasse[d] a certain temperature threshold”, the paper says.

This threshold is an absolute global average temperature of 14.3C, the authors estimate (based on an 11-year average), which the world passed around the year 2000.

Investigating the recent surge in heatwave-leading CDHEs further, the researchers find a “regime shift” in land-atmosphere dynamics “toward a persistently intensified state after the late 1990s”.

In other words, the way that drier soils drive higher surface temperatures, and vice versa, is becoming stronger, resulting in more heatwave-led compound events.

Daily data

The research has some advantages over other previous studies, Yeh says. For instance, the new work uses daily estimations of CDHEs, compared to monthly data used in past research. This is “important for capturing the detailed occurrence” of these events, says Yeh.

He adds that another advantage of their study is that it distinguishes the sequence of droughts and heatwaves, which allows them to “better understand the differences” in the characteristics of CDHEs.

Dr Meryem Tanarhte is a climate scientist at the University Hassan II in Morocco, and Dr Ruth Cerezo Mota is a climatologist and a researcher at the National Autonomous University of Mexico. Both scientists, who were not involved in the study, agree that the daily estimations give a clearer picture of how CDHEs are changing.

Cerezo-Mota adds that another major contribution of the study is its global focus. She tells Carbon Brief that in some regions, such as Mexico and Africa, there is a lack of studies on CDHEs:

“Not because the events do not occur, but perhaps because [these regions] do not have all the data or the expertise to do so.”

However, she notes that the reanalysis data used by the study does have limitations with how it represents rainfall in some parts of the world.

Compound impacts

The study notes that if CDHEs continue to intensify – particularly events where heatwaves are the precursors – they could drive declining crop productivity, increased wildfire frequency and severe public health crises.

These impacts could be “much more rapid and severe as global warming continues”, Yeh tells Carbon Brief.

Tanarhte notes that these events can be forecasted up to 10 days ahead in many regions. Furthermore, she says, the strongest impacts can be prevented “through preparedness and adaptation”, including through “water management for agriculture, heatwave mitigation measures and wildfire mitigation”.

The study recommends reassessing current risk management strategies for these compound events. It also suggests incorporating the sequences of drought and heatwaves into compound event analysis frameworks “to enhance climate risk management”.

Cerezo-Mota says that it is clear that the world needs to be prepared for the increased occurrence of these events. She tells Carbon Brief:

“These [risk assessments and strategies] need to be carried out at the local level to understand the complexities of each region.”

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Heatwaves driving recent ‘surge’ in compound drought and heat extremes

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DeBriefed 6 March 2026: Iran energy crisis | China climate plan | Bristol’s ‘pioneering’ wind turbine

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Welcome to Carbon Brief’s DeBriefed. 
An essential guide to the week’s key developments relating to climate change.

This week

Energy crisis

ENERGY SPIKE: US-Israeli attacks on Iran and subsequent counterattacks across the Middle East have sent energy prices “soaring”, according to Reuters. The newswire reported that the region “accounts for just under a third of global oil production and almost a fifth of gas”. The Guardian noted that shipping traffic through the strait of Hormuz, which normally ferries 20% of the world’s oil, “all but ground to a halt”. The Financial Times reported that attacks by Iran on Middle East energy facilities – notably in Qatar – triggered the “biggest rise in gas prices since Russia’s full-scale invasion of Ukraine”.

‘RISK’ AND ‘BENEFITS’: Bloomberg reported on increases in diesel prices in Europe and the US, speculating that rising fuel costs could be “a risk for president Donald Trump”. US gas producers are “poised to benefit from the big disruption in global supply”, according to CNBC. Indian government sources told the Economic Times that Russia is prepared to “fulfil India’s energy demands”. China Daily quoted experts who said “China’s energy security remains fundamentally unshaken”, thanks to “emergency stockpiles and a wide array of import channels”.

‘ESSENTIAL’ RENEWABLES: Energy analysts said governments should cut their fossil-fuel reliance by investing in renewables, “rather than just seeking non-Gulf oil and gas suppliers”, reported Climate Home News. This message was echoed by UK business secretary Peter Kyle, who said “doubling down on renewables” was “essential” amid “regional instability”, according to the Daily Telegraph.

China’s climate plan

PEAK COAL?: China has set out its next “five-year plan” at the annual “two sessions” meeting of the National People’s Congress, including its climate strategy out to 2030, according to the Hong Kong-based South China Morning Post. The plan called for China to cut its carbon emissions per unit of gross domestic product (GDP) by 17% from 2026 to 2030, which “may allow for continued increase in emissions given the rate of GDP growth”, reported Reuters. The newswire added that the plan also had targets to reach peak coal ​in the next five years and replace 30m tonnes per year of coal with renewables.

ACTIVE YET PRUDENT: Bloomberg described the new plan as “cautious”, stating that it “frustrat[es] hopes for tighter policy that would drive the nation to peak carbon emissions well before president Xi Jinping’s 2030 deadline”. Carbon Brief has just published an in-depth analysis of the plan. China Daily reported that the strategy “highlights measures to promote the climate targets of peaking carbon dioxide emissions before 2030”, which China said it would work towards “actively yet prudently”. 

Around the world

  • EU RULES: The European Commission has proposed new “made in Europe” rules to support domestic low-carbon industries, “against fierce competition from China”, reported Agence France-Presse. Carbon Brief examined what it means for climate efforts.
  • RECORD HEAT: The US National Oceanic and Atmospheric Administration has said there is a 50-60% chance that the El Niño weather pattern could return this year, amplifying the effect of global warming and potentially driving temperatures to “record highs”, according to Euronews.
  • FLAGSHIP FUND: The African Development Bank’s “flagship clean energy fund” plans to more than double its financing to $2.5bn for African renewables over the next two years, reported the Associated Press.
  • NO WITHDRAWAL: Vanuatu has defied US efforts to force the Pacific-island nation to drop a UN draft resolution calling on the world to implement a landmark International Court of Justice (ICJ) ruling on climate, according to the Guardian.

98

The number of nations that submitted their national reports on tackling nature loss to the UN on time – just half of the 196 countries that are part of the UN biodiversity treaty – according to analysis by Carbon Brief.


Latest climate research

  • Sea levels are already “much higher than assumed” in most assessments of the threat posed by sea-level rise, due to “inadequate” modelling assumptions | Nature
  • Accelerating human-caused global warming could see the Paris Agreement’s 1.5C limit crossed before 2030 | Geophysical Research Letters covered by Carbon Brief
  • Future “super El Niño events” could “significantly lower” solar power generation due to a reduction in solar irradiance in key regions, such as California and east China | Communications Earth & Environment

(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)

Captured

UK greenhouse gas emissions in 2025

UK greenhouse gas emissions in 2025 fell to 54% below 1990 levels, the baseline year for its legally binding climate goals, according to new Carbon Brief analysis. Over the same period, data from the World Bank shows that the UK’s economy has expanded by 95%, meaning that emissions have been decoupling from growth.

Spotlight

Bristol’s ‘pioneering’ community wind turbine

Following the recent launch of the UK government’s local power plan, Carbon Brief visits one of the country’s community-energy success stories.

The Lawrence Weston housing estate is set apart from the main city of Bristol, wedged between the tree-lined grounds of a stately home and a sprawl of warehouses and waste incinerators. It is one of the most deprived areas in the city.

Yet, just across the M5 motorway stands a structure that has brought the spoils of the energy transition directly to this historically forgotten estate – a 4.2 megawatt (MW) wind turbine.

The turbine is owned by local charity Ambition Lawrence Weston and all the profits from its electricity sales – around £100,000 a year – go to the community. In the UK’s local power plan, it was singled out by energy secretary Ed Miliband as a “pioneering” project.

‘Sustainable income’

On a recent visit to the estate by Carbon Brief, Ambition Lawrence Weston’s development manager, Mark Pepper, rattled off the story behind the wind turbine.

In 2012, Pepper and his team were approached by the Bristol Energy Cooperative with a chance to get a slice of the income from a new solar farm. They jumped at the opportunity.

Austerity measures were kicking in at the time,” Pepper told Carbon Brief. “We needed to generate an income. Our own, sustainable income.”

With the solar farm proving to be a success, the team started to explore other opportunities. This began a decade-long process that saw them navigate the Conservative government’s “ban” on onshore wind, raise £5.5m in funding and, ultimately, erect the turbine in 2023.

Today, the turbine generates electricity equivalent to Lawrence Weston’s 3,000 households and will save 87,600 tonnes of carbon dioxide (CO2) over its lifetime.

Ambition Lawrence Weston’s Mark Pepper and the wind turbine.
Ambition Lawrence Weston’s Mark Pepper and the wind turbine. Artwork: Josh Gabbatiss

‘Climate by stealth’

Ambition Lawrence Weston’s hub is at the heart of the estate and the list of activities on offer is seemingly endless: birthday parties, kickboxing, a library, woodworking, help with employment and even a pop-up veterinary clinic. All supported, Pepper said, with the help of a steady income from community-owned energy.

The centre itself is kitted out with solar panels, heat pumps and electric-vehicle charging points, making it a living advertisement for the net-zero transition. Pepper noted that the organisation has also helped people with energy costs amid surging global gas prices.

Gesturing to the England flags dangling limply on lamp posts visible from the kitchen window, he said:

“There’s a bit of resentment around immigration and scarcity of materials and provision, so we’re trying to do our bit around community cohesion.”

This includes supper clubs and an interfaith grand iftar during the Muslim holy month of Ramadan.

Anti-immigration sentiment in the UK has often gone hand-in-hand with opposition to climate action. Right-wing politicians and media outlets promote the idea that net-zero policies will cost people a lot of money – and these ideas have cut through with the public.

Pepper told Carbon Brief he is sympathetic to people’s worries about costs and stressed that community energy is the perfect way to win people over:

“I think the only way you can change that is if, instead of being passive consumers…communities are like us and they’re generating an income to offset that.”

From the outset, Pepper stressed that “we weren’t that concerned about climate because we had other, bigger pressures”, adding:

“But, in time, we’ve delivered climate by stealth.”

Watch, read, listen

OIL WATCH: The Guardian has published a “visual guide” with charts and videos showing how the “escalating Iran conflict is driving up oil and gas prices”.

MURDER IN HONDURAS: Ten years on from the murder of Indigenous environmental justice advocate Berta Cáceres, Drilled asked why Honduras is still so dangerous for environmental activists.

TALKING WEATHER: A new film, narrated by actor Michael Sheen and titled You Told Us To Talk About the Weather, aimed to promote conversation about climate change with a blend of “poetry, folk horror and climate storytelling”.

Coming up

Pick of the jobs

DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.

This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.

The post DeBriefed 6 March 2026: Iran energy crisis | China climate plan | Bristol’s ‘pioneering’ wind turbine appeared first on Carbon Brief.

DeBriefed 6 March 2026: Iran energy crisis | China climate plan | Bristol’s ‘pioneering’ wind turbine

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Q&A: What does China’s 15th ‘five-year plan’ mean for climate change?

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China’s leadership has published a draft of its 15th five-year plan setting the strategic direction for the nation out to 2030, including support for clean energy and energy security.

The plan sets a target to cut China’s “carbon intensity” by 17% over the five years from 2026-30, but also changes the basis for calculating this key climate metric.

The plan continues to signal support for China’s clean-energy buildout and, in general, contains no major departures from the country’s current approach to the energy transition.

The government reaffirms support for several clean-energy industries, ranging from solar and electric vehicles (EVs) through to hydrogen and “new-energy” storage.

The plan also emphasises China’s willingness to steer climate governance and be seen as a provider of “global public goods”, in the form of affordable clean-energy technologies.

However, while the document says it will “promote the peaking” of coal and oil use, it does not set out a timeline and continues to call for the “clean and efficient” use of coal.

This shows that tensions remain between China’s climate goals and its focus on energy security, leading some analysts to raise concerns about its carbon-cutting ambition.

Below, Carbon Brief outlines the key climate change and energy aspects of the plan, including targets for carbon intensity, non-fossil energy and forestry.

Note: this article is based on a draft published on 5 March and will be updated if any significant changes are made in the final version of the plan, due to be released at the close next week of the “two sessions” meeting taking place in Beijing.

What is China’s 15th five-year plan?

Five-year plans are one of the most important documents in China’s political system.

Addressing everything from economic strategy to climate policy, they outline the planned direction for China’s socio-economic development in a five-year period. The 15th five-year plan covers 2026-30.

These plans include several “main goals”. These are largely quantitative indicators that are seen as particularly important to achieve and which provide a foundation for subsequent policies during the five-year period.

The table below outlines some of the key “main goals” from the draft 15th five-year plan.

Category Indicator Indicator in 2025 Target by 2030 Cumulative target over 2026-2030 Characteristic
Economic development Gross domestic product (GDP) growth (%) 5 Maintained within a reasonable range and proposed annually as appropriate. Anticipatory
‘Green and low-carbon Reduction in CO2 emissions per unit of GDP (%) 17.7 17 Binding
Share of non-fossil energy in total energy consumption (%) 21.7 25 Binding
Security guarantee Comprehensive energy production
capacity (100m tonnes of
standard coal equivalent)
51.3 58 Binding

Select list of targets highlighted in the “main goals” section of the draft 15th five-year plan. Source: Draft 15th five-year plan.

Since the 12th five-year plan, covering 2011-2015, these “main goals” have included energy intensity and carbon intensity as two of five key indicators for “green ecology”.

The previous five-year plan, which ran from 2021-2025, introduced the idea of an absolute “cap” on carbon dioxide (CO2) emissions, although it did not provide an explicit figure in the document. This has been subsequently addressed by a policy on the “dual-control of carbon” issued in 2024.

The latest plan removes the energy-intensity goal and elevates the carbon-intensity goal, but does not set an absolute cap on emissions (see below).

It covers the years until 2030, before which China has pledged to peak its carbon emissions. (Analysis for Carbon Brief found that emissions have been “flat or falling” since March 2024.)

The plans are released at the two sessions, an annual gathering of the National People’s Congress (NPC) and the Chinese People’s Political Consultative Conference (CPPCC). This year, it runs from 4-12 March.

The plans are often relatively high-level, with subsequent topic-specific five-year plans providing more concrete policy guidance.

Policymakers at the National Energy Agency (NEA) have indicated that in the coming years they will release five sector-specific plans for 2026-2030, covering topics such as the “new energy system”, electricity and renewable energy.

There may also be specific five-year plans covering carbon emissions and environmental protection, as well as the coal and nuclear sectors, according to analysts.

Other documents published during the two sessions include an annual government work report, which outlines key targets and policies for the year ahead.

The gathering is attended by thousands of deputies – delegates from across central and local governments, as well as Chinese Communist party members, members of other political parties, academics, industry leaders and other prominent figures.

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What does the plan say about China’s climate action?

Achieving China’s climate targets will remain a key driver of the country’s policies in the next five years, according to the draft 15th five-year plan.

It lists the “acceleration” of China’s energy transition as a “major achievement” in the 14th five-year plan period (2021-2025), noting especially how clean-power capacity had overtaken fossil fuels.

The draft says China will “actively and steadily advance and achieve carbon peaking”, with policymakers continuing to strike a balance between building a “green economy” and ensuring stability.

Climate and environment continues to receive its own chapter in the plan. However, the framing and content of this chapter has shifted subtly compared with previous editions, as shown in the table below. For example, unlike previous plans, the first section of this chapter focuses on China’s goal to peak emissions.

11th five-year plan (2006-2010) 12th five-year plan (2011-2015) 13th five-year plan (2016-2020) 14th five-year plan (2021-2025) 15th five-year plan (2026-2030)
Chapter title Part 6: Build a resource-efficient and environmentally-friendly society Part 6: Green development, building a resource-efficient and environmentally friendly society Part 10: Ecosystems and the environment Part 11: Promote green development and facilitate the harmonious coexistence of people and nature Part 13: Accelerating the comprehensive green transformation of economic and social development to build a beautiful China
Sections Developing a circular economy Actively respond to global climate change Accelerate the development of functional zones Improve the quality and stability of ecosystems Actively and steadily advancing and achieving carbon peaking
Protecting and restoring natural ecosystems Strengthen resource conservation and management Promote economical and intensive resource use Continue to improve environmental quality Continuously improving environmental quality
Strengthening environmental protection Vigorously develop the circular economy Step up comprehensive environmental governance Accelerate the green transformation of the development model Enhancing the diversity, stability, and sustainability of ecosystems
Enhancing resource management Strengthen environmental protection efforts Intensify ecological conservation and restoration Accelerating the formation of green production and lifestyles
Rational utilisation of marine and climate resources Promoting ecological conservation and restoration Respond to global climate change
Strengthen the development of water conservancy and disaster prevention and mitigation systems Improve mechanisms for ensuring ecological security
Develop green and environmentally-friendly industries

Title and main sections of the climate and environment-focused chapters in the last five five-year plans. Source: China’s 11th, 12th, 13th, 14th and 15th five-year plans.

The climate and environment chapter in the latest plan calls for China to “balance [economic] development and emission reduction” and “ensure the timely achievement of carbon peak targets”.

Under the plan, China will “continue to pursue” its established direction and objectives on climate, Prof Li Zheng, dean of the Tsinghua University Institute of Climate Change and Sustainable Development (ICCSD), tells Carbon Brief.

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What is China’s new CO2 intensity target?

In the lead-up to the release of the plan, analysts were keenly watching for signals around China’s adoption of a system for the “dual-control of carbon”.

This would combine the existing targets for carbon intensity – the CO2 emissions per unit of GDP – with a new cap on China’s total carbon emissions. This would mark a dramatic step for the country, which has never before set itself a binding cap on total emissions.

Policymakers had said last year that this framework would come into effect during the 15th five-year plan period, replacing the previous system for the “dual-control of energy”.

However, the draft 15th five-year plan does not offer further details on when or how both parts of the dual-control of carbon system will be implemented. Instead, it continues to focus on carbon intensity targets alone.

Looking back at the previous five-year plan period, the latest document says China had achieved a carbon-intensity reduction of 17.7%, just shy of its 18% goal.

This is in contrast with calculations by Lauri Myllyvirta, lead analyst at the Centre for Research on Energy and Clean Air (CREA), which had suggested that China had only cut its carbon intensity by 12% over the past five years.

At the time it was set in 2021, the 18% target had been seen as achievable, with analysts telling Carbon Brief that they expected China to realise reductions of 20% or more.

However, the government had fallen behind on meeting the target.

Last year, ecology and environment minister Huang Runqiu attributed this to the Covid-19 pandemic, extreme weather and trade tensions. He said that China, nevertheless, remained “broadly” on track to meet its 2030 international climate pledge of reducing carbon intensity by more than 65% from 2005 levels.

Myllyvirta tells Carbon Brief that the newly reported figure showing a carbon-intensity reduction of 17.7% is likely due to an “opportunistic” methodological revision. The new methodology now includes industrial process emissions – such as cement and chemicals – as well as the energy sector.

(This is not the first time China has redefined a target, with regulators changing the methodology for energy intensity in 2023.)

For the next five years, the plan sets a target to reduce carbon intensity by 17%, slightly below the previous goal.

However, the change in methodology means that this leaves space for China’s overall emissions to rise by “3-6% over the next five years”, says Myllyvirta. In contrast, he adds that the original methodology would have required a 2% fall in absolute carbon emissions by 2030.

The dashed lines in the chart below show China’s targets for reducing carbon intensity during the 12th, 13th, 14th and 15th five-year periods, while the bars show what was achieved under the old (dark blue) and new (light blue) methodology.

China reports meeting its latest carbon-intensity target after a change in methodology.
Dashed lines: China’s carbon-intensity targets during the 12th, 13th, 14th and 15th five-year plan periods. Bars: China’s achieved carbon-intensity reductions according to either the old methodology (dark blue) and the new one (light blue). The achieved reductions during the 12th and 13th five-year plans are from contemporaneous government statistics and may be revised in future. The reduction figures for the 14th five-year plan period are sourced from government statistics for the new methodology and analysis by CREA under the old methodology. Sources: Five-year plans and Carbon Brief.

The carbon-intensity target is the “clearest signal of Beijing’s climate ambition”, says Li Shuo, director at the Asia Society Policy Institute’s (ASPI) China climate hub.

It also links directly to China’s international pledge – made in 2021 – to cut its carbon intensity to more than 65% below 2005 levels by 2030.

To meet this pledge under the original carbon-intensity methodology, China would have needed to set a target of a 23% reduction within the 15th five-year plan period. However, the country’s more recent 2035 international climate pledge, released last year, did not include a carbon-intensity target.

As such, ASPI’s Li interprets the carbon-intensity target in the draft 15th five-year plan as a “quiet recalibration” that signals “how difficult the original 2030 goal has become”.

Furthermore, the 15th five-year plan does not set an absolute emissions cap.

This leaves “significant ambiguity” over China’s climate plans, says campaign group 350 in a press statement reacting to the draft plan. It explains:

“The plan was widely expected to mark a clearer transition from carbon-intensity targets toward absolute emissions reductions…[but instead] leaves significant ambiguity about how China will translate record renewable deployment into sustained emissions cuts.”

Myllyvirta tells Carbon Brief that this represents a “continuation” of the government’s focus on scaling up clean-energy supply while avoiding setting “strong measurable emission targets”.

He says that he would still expect to see absolute caps being set for power and industrial sectors covered by China’s emissions trading scheme (ETS). In addition, he thinks that an overall absolute emissions cap may still be published later in the five-year period.

Despite the fact that it has yet to be fully implemented, the switch from dual-control of energy to dual-control of carbon represents a “major policy evolution”, Ma Jun, director of the Institute of Public and Environmental Affairs (IPE), tells Carbon Brief. He says that it will allow China to “provide more flexibility for renewable energy expansion while tightening the net on fossil-fuel reliance”.

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Does the plan encourage further clean-energy additions?

“How quickly carbon intensity is reduced largely depends on how much renewable energy can be supplied,” says Yao Zhe, global policy advisor at Greenpeace East Asia, in a statement.

The five-year plan continues to call for China’s development of a “new energy system that is clean, low-carbon, safe and efficient” by 2030, with continued additions of “wind, solar, hydro and nuclear power”.

In line with China’s international pledge, it sets a target for raising the share of non-fossil energy in total energy consumption to 25% by 2030, up from just under 21.7% in 2025.

The development of “green factories” and “zero-carbon [industrial] parks” has been central to many local governments’ strategies for meeting the non-fossil energy target, according to industry news outlet BJX News. A call to build more of these zero-carbon industrial parks is listed in the five-year plan.

Prof Pan Jiahua, dean of Beijing University of Technology’s Institute of Ecological Civilization, tells Carbon Brief that expanding demand for clean energy through mechanisms such as “green factories” represents an increasingly “bottom-up” and “market-oriented” approach to the energy transition, which will leave “no place for fossil fuels”.

He adds that he is “very much sure that China’s zero-carbon process is being accelerated and fossil fuels are being driven out of the market”, pointing to the rapid adoption of EVs.

The plan says that China will aim to double “non-fossil energy” in 10 years – although it does not clarify whether this means their installed capacity or electricity generation, or what the exact starting year would be.

Research has shown that doubling wind and solar capacity in China between 2025-2035 would be “consistent” with aims to limit global warming to 2C.

While the language “certainly” pushes for greater additions of renewable energy, Yao tells Carbon Brief, it is too “opaque” to be a “direct indication” of the government’s plans for renewable additions.

She adds that “grid stability and healthy, orderly competition” is a higher priority for policymakers than guaranteeing a certain level of capacity additions.

China continues to place emphasis on the need for large-scale clean-energy “bases” and cross-regional power transmission.

The plan says China must develop “clean-energy bases…in the three northern regions” and “integrated hydro-wind-solar complexes” in south-west China.

It specifically encourages construction of “large-scale wind and solar” power bases in desert regions “primarily” for cross-regional power transmission, as well as “major hydropower” projects, including the Yarlung Tsangpo dam in Tibet.

As such, the country should construct “power-transmission corridors” with the capacity to send 420 gigawatts (GW) of electricity from clean-energy bases in western provinces to energy-hungry eastern provinces by 2030, the plan says.

State Grid, China’s largest grid operator, plans to install “another 15 ultra-high voltage [UHV] transmission ​lines” by 2030, reports Reuters, up from the 45 UHV lines built by last year.

Below are two maps illustrating the interlinkages between clean-energy bases in China in the 15th (top) and 14th (bottom) five-year plan periods.

The yellow dotted areas represent clean energy bases, while the arrows represent cross-regional power transmission. The blue wind-turbine icons represent offshore windfarms and the red cooling tower icons represent coastal nuclear plants.

Maps showing layout of key energy projects in China during 2026-2030 (top) and 2021-2025 (bottom). Source: Chinese government’s 15th five-year plan and 14th five-year plan.
Maps showing layout of key energy projects in China during 2026-2030 (top) and 2021-2025 (bottom). Source: Chinese government’s 15th five-year plan and 14th five-year plan.
Maps showing layout of key energy projects in China during 2026-2030 (top) and 2021-2025 (bottom). Source: Chinese government’s 15th five-year plan and 14th five-year plan.

The 15th five-year plan map shows a consistent approach to the 2021-2025 period. As well as power being transmitted from west to east, China plans for more power to be sent to southern provinces from clean-energy bases in the north-west, while clean-energy bases in the north-east supply China’s eastern coast.

It also maps out “mutual assistance” schemes for power grids in neighbouring provinces.

Offshore wind power should reach 100GW by 2030, while nuclear power should rise to 110GW, according to the plan.

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What does the plan signal about coal?

The increased emphasis on grid infrastructure in the draft 15th five-year plan reflects growing concerns from energy planning officials around ensuring China’s energy supply.

Ren Yuzhi, director of the NEA’s development and planning department, wrote ahead of the plan’s release that the “continuous expansion” of China’s energy system has “dramatically increased its complexity”.

He said the NEA felt there was an “urgent need” to enhance the “secure and reliable” replacement of fossil-fuel power with new energy sources, as well as to ensure the system’s “ability to absorb them”.

Meanwhile, broader concerns around energy security have heightened calls for coal capacity to remain in the system as a “ballast stone”.

The plan continues to support the “clean and efficient utilisation of fossil fuels” and does not mention either a cap or peaking timeline for coal consumption.

Xi had previously told fellow world leaders that China would “strictly control” coal-fired power and phase down coal consumption in the 15th five-year plan period.

The “geopolitical situation is increasing energy security concerns” at all levels of government, said the Institute for Global Decarbonization Progress in a note responding to the draft plan, adding that this was creating “uncertainty over coal reduction”.

Ahead of its publication, there were questions around whether the plan would set a peaking deadline for oil and coal. An article posted by state news agency Xinhua last month, examining recommendations for the plan from top policymakers, stated that coal consumption would plateau from “around 2027”, while oil would peak “around 2026”.

However, the plan does not lay out exact years by which the two fossil fuels should peak, only saying that China will “promote the peaking of coal and oil consumption”.

There are similarly no mentions of phasing out coal in general, in line with existing policy.

Nevertheless, there is a heavy emphasis on retrofitting coal-fired power plants. The plan calls for the establishment of “demonstration projects” for coal-plant retrofitting, such as through co-firing with biomass or “green ammonia”.

Such retrofitting could incentivise lower utilisation of coal plants – and thus lower emissions – if they are used to flexibly meet peaks in demand and to cover gaps in clean-energy output, instead of providing a steady and significant share of generation.

The plan also calls for officials to “fully implement low-carbon retrofitting projects for coal-chemical industries”, which have been a notable source of emissions growth in the past year.

However, the coal-chemicals sector will likely remain a key source of demand for China’s coal mining industry, with coal-to-oil and coal-to-gas bases listed as a “key area” for enhancing the country’s “security capabilities”.

Meanwhile, coal-fired boilers and industrial kilns in the paper industry, food processing and textiles should be replaced with “clean” alternatives to the equivalent of 30m tonnes of coal consumption per year, it says.

“China continues to scale up clean energy at an extraordinary pace, but the plan still avoids committing to strong measurable constraints on emissions or fossil fuel use”, says Joseph Dellatte, head of energy and climate studies at the Institut Montaigne. He adds:

“The logic remains supply-driven: deploy massive amounts of clean energy and assume emissions will eventually decline.”

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How will China approach global climate governance in the next five years?

Meanwhile, clean-energy technologies continue to play a role in upgrading China’s economy, with several “new energy” sectors listed as key to its industrial policy.

Named sectors include smart EVs, “new solar cells”, new-energy storage, hydrogen and nuclear fusion energy.

“China’s clean-technology development – rather than traditional administrative climate controls – is increasingly becoming the primary driver of emissions reduction,” says ASPI’s Li. He adds that strengthening China’s clean-energy sectors means “more closely aligning Beijing’s economic ambitions with its climate objectives”.

Analysis for Carbon Brief shows that clean energy drove more than a third of China’s GDP growth in 2025, representing around 11% of China’s whole economy.

The continued support for these sectors in the draft five-year plan comes as the EU outlined its own measures intended to limit China’s hold on clean-energy industries, driven by accusations of “unfair competition” from Chinese firms.

China is unlikely to crack down on clean-tech production capacity, Dr Rebecca Nadin, director of the Centre for Geopolitics of Change at ODI Global, tells Carbon Brief. She says:

“Beijing is treating overcapacity in solar and smart EVs as a strategic choice, not a policy error…and is prepared to pour investment into these sectors to cement global market share, jobs and technological leverage.”

Dellatte echoes these comments, noting that it is “striking” that the plan “barely addresses the issue of industrial overcapacity in clean technologies”, with the focus firmly on “scaling production and deployment”.

At the same time, China is actively positioning itself to be a prominent voice in climate diplomacy and a champion of proactive climate action.

This is clear from the first line in a section on providing “global public goods”. It says:

“As a responsible major country, China will play a more active role in addressing global challenges such as climate change.”

The plan notes that China will “actively participate in and steer [引领] global climate governance”, in line with the principle of “common,but differentiated responsibilities”.

This echoes similar language from last year’s government work report, Yao tells Carbon Brief, demonstrating a “clear willingness” to guide global negotiations. But she notes that this “remains an aspiration that’s yet to be made concrete”. She adds:

“China has always favored collective leadership, so its vision of leadership is never a lone one.”

The country will “deepen south-south cooperation on climate change”, the plan says. In an earlier section on “opening up”, it also notes that China will explore “new avenues for collaboration in green development” with global partners as part of its “Belt and Road Initiative”.

China is “doubling down” on a narrative that it is a “responsible major power” and “champion of south-south climate cooperation”, Nadin says, such as by “presenting its clean‑tech exports and finance as global public goods”. She says:

“China will arrive at future COPs casting itself as the indispensable climate leader for the global south…even though its new five‑year plan still puts growth, energy security and coal ahead of faster emissions cuts at home.”

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What else does the plan cover?

The impact of extreme weather – particularly floods – remains a key concern in the plan.

China must “refine” its climate adaptation framework and “enhance its resilience to climate change, particularly extreme-weather events”, it says.

China also aims to “strengthen construction of a national water network” over the next five years in order to help prevent floods and droughts.

An article published a few days before the plan in the state-run newspaper China Daily noted that, “as global warming intensifies, extreme weather events – including torrential rains, severe convective storms, and typhoons – have become more frequent, widespread and severe”.

The plan also touches on critical minerals used for low-carbon technologies. These will likely remain a geopolitical flashpoint, with China saying it will focus during the next five years on “intensifying” exploration and “establishing” a reserve for critical minerals. This reserve will focus on “scarce” energy minerals and critical minerals, as well as other “advantageous mineral resources”.

Dellatte says that this could mean the “competition in the energy transition will increasingly be about control over mineral supply chains”.

Other low-carbon policies listed in the five-year plan include expanding coverage of China’s mandatory carbon market and further developing its voluntary carbon market.

China will “strengthen monitoring and control” of non-CO2 greenhouse gases, the plan says, as well as implementing projects “targeting methane, nitrous oxide and hydrofluorocarbons” in sectors such as coal mining, agriculture and chemicals.

This will create “capacity” for reducing emissions by 30m tonnes of CO2 equivalent, it adds.

Meanwhile, China will develop rules for carbon footprint accounting and push for internationally recognised accounting standards.

It will enhance reform of power markets over the next five years and improve the trading mechanism for green electricity certificates.

It will also “promote” adoption of low-carbon lifestyles and decarbonisation of transport, as well as working to advance electrification of freight and shipping.

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Q&A: What does China’s 15th ‘five-year plan’ mean for climate change?

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