China’s central and local governments, as well as state-owned enterprises, are busy preparing for the next five-year planning period, spanning 2026-30.
The top-level 15th five-year plan, due to be published in March 2026, will shape greenhouse gas emissions in China – and globally – for the rest of this decade and beyond.
The targets set under the plan will determine whether China is able to get back on track for its 2030 climate commitments, which were made personally by President Xi Jinping in 2021.
This would require energy sector carbon dioxide (CO2) emissions to fall by 2-6% by 2030, much more than implied by the 2035 target of a 7-10% cut from “peak levels”.

The next five-year plan will set the timing and the level of this emissions peak, as well as whether emissions will be allowed to rebound in the short term.
The plan will also affect the pace of clean-energy growth, which has repeatedly beaten previous targets and has become a key driver of the nation’s economy.
Some 250-350 gigawatts (GW) of new wind and solar would be needed each year to meet China’s 2030 commitments, far above the 200GW being targeted.
Finally, the plans will shape China’s transition away from fossil fuels, with key sectors now openly discussing peak years for coal and oil demand, but with 330GW of new coal capacity in the works and more than 500 new chemical industry projects due in the next five years.
These issues come together in five key questions for climate and energy that Chinese policymakers will need to answer in the final five-year plan documents next year.
Five-year plans and their role in China
1. Will the plan put China back on track for its 2030 Paris pledge?
2. Will the plan upgrade clean-energy targets or pave the way to exceed them?
3. Will the plan set an absolute cap on coal consumption?
4. Will ‘dual control’ of carbon prevent an emission rebound?
5. Will it limit coal-power and chemical-industry growth?
Five-year plans and their role in China
Five-year plans are an essential part of China’s policymaking, guiding decision-making at government bodies, enterprises and banks. The upcoming 15th five-year plan will cover the years 2026-30, set targets for 2030 and use 2025 as its base year.
The top-level five-year plan will be published in March 2026 and is known as the five-year plan on economic and social development. This overarching document will be followed by dozens of sectoral plans, as well as province- and company-level plans.
The sectoral plans are usually published in the second year of the five-year period, meaning they would be expected in 2027.
There will be five-year plans for the energy sector, the electricity sector, for renewable energy, nuclear, coal and many other sub-sectors, as well as plans for major industrial sectors such as steel, construction materials and chemicals.
It is likely that there will also be a plan for carbon emissions or carbon peaking and a five-year plan for the environment.
During the previous five-year period, the plans of provinces and state-owned enterprises for very large-scale solar and wind projects were particularly important, far exceeding the central government’s targets.
The five-year plans create incentives for provincial governments and ministries by setting quantified targets that they are responsible for meeting. These targets influence the performance evaluations of governors, CEOs and party secretaries.
The plans also designate favoured sectors and projects, directing bank lending, easing permitting and providing an implicit government guarantee for the project developers.
Each plan lists numerous things that should be “promoted”, banned or controlled, leaving the precise implementation to different state organs and state-owned enterprises.
Five-year plans can introduce and coordinate national mega-projects, such as the gigantic clean-energy “bases” and associated electricity transmission infrastructure, which were outlined in the previous five-year plan in 2021.
The plans also function as a policy roadmap, assigning the tasks to develop new policies and providing stakeholders with visibility to expected policy developments.
1. Will the plan put China back on track for its 2030 Paris pledge?
Reducing carbon intensity – the energy-sector carbon dioxide (CO2) emissions per unit of GDP – has been the cornerstone of China’s climate commitments since the 2020 target announced at the 2009 Copenhagen climate conference.
Consequently, the last three five-year plans have included a carbon-intensity target. The next 15th one is highly likely to set a carbon-intensity target too, given that this is the centerpiece of China’s 2030 climate targets.
Moreover, it was president Xi himself who pledged in 2021 that China would reduce its carbon intensity to 65% below 2005 levels by 2030. This was later formalised in China’s 2030 “nationally determined contribution” (NDC) under the Paris Agreement.
Xi also pledged that China would gradually reduce coal consumption during the five-year period up to 2030. However, China is significantly off track to these targets.
China’s CO2 emissions grew more quickly in the early 2020s than they had been before the Coronavirus pandemic, as shown in the figure below. This stems from a surge in energy consumption during and after the “zero-Covid” period, together with a rapid expansion of coal-fired power and the fossil-fuel based chemical industry. as shown in the figure below.
As a result, meeting the 2030 intensity target would require a reduction in CO2 emissions from current levels, with the level of the drop depending on the rate of economic growth.

Xi’s personal imprimatur would make missing these 2030 targets awkward for China, particularly given the country’s carefully cultivated reputation for delivery. On the other hand, meeting them would require much stronger action than initially anticipated.
Recent policy documents and statements, in particular the recommendations of the Central Committee of the Communist Party for the next five-year plan, and the government’s work report for 2025, have put the emphasis on China’s target to peak emissions before 2030 and the new 2035 emission target, which would still allow emissions to increase over the next five-year period. The earlier 2030 commitments risk being buried as inconvenient.
Still, the State Council’s plan for controlling carbon emissions, published in 2024, says that carbon intensity will be a “binding indicator” for the next five-year period, meaning that a target will be included in the top-level plan published in March 2026.
China is only set to achieve a reduction of about 12% in carbon intensity from 2020 to 2025 – a marked slowdown relative to previous periods, as shown in the figure below.
(This is based on reductions reported annually by the National Bureau of Statistics until 2024 and a projected small increase in energy-sector CO2 emissions in 2025. Total CO2 emissions could still fall this year, when the fall in process emissions from cement production is factored in.)
A 12% fall would be far less than the 18% reduction targeted under the 14th five-year plan, as well as falling short of what would be needed to stay on track to the 2030 target.
To make up the shortfall and meet the 2030 intensity target, China would need to set a goal of around 23% in the next five-year plan. As such, this target will be a key test of China’s determination to honour its climate commitments.

A carbon-intensity target of 23% is likely to receive pushback from some policymakers, as it is much higher than achieved in previous periods. No government or thinktank documents have yet been published with estimates of what the 2030 intensity target would need to be.
In practice, meeting the 2030 carbon intensity target would require reducing CO2 emissions by 2-6% in absolute terms from 2025, assuming a GDP growth rate of 4.2-5.0%.
China needs 4.2% GDP growth over the next decade to achieve Xi’s target of doubling the country’s GDP per capita from 2020 to 2035, a key part of his vision of achieving “socialist modernisation” by 2035, with the target for the next five years likely to be set higher.
Recent high-level policy documents have avoided even mentioning the 2030 intensity target. It is omitted in recommendations of the Central Committee of the Communist Party for the next five-year plan, the foundation on which the plan will be formulated.
Instead, the recommendations emphasised “achieving the carbon peak as scheduled” and “promoting the peaking of coal and oil consumption”, which are less demanding.
The environment ministry, in contrast, continues to pledge efforts to meet the carbon intensity target. However, they are not the ones writing the top-level five-year plan.
The failure to meet the 2025 intensity target has been scarcely mentioned in top-level policy discussions. There was no discernible effort to close the gap to the target, even after the midway review of the five-year plan recognised the shortfall.
The State Council published an action plan to get back on track, including a target for reducing carbon intensity in 2024 – albeit one not sufficient to close the shortfall. Yet this plan, in turn, was not followed up with an annual target for 2025.
The government could also devise ways to narrow the gap to the target on paper, through statistical revisions or tweaks to the definition of carbon intensity, as the term has not been defined in China’s NDCs.
Notably, unlike China’s previous NDC, its latest pledge did not include a progress update for carbon intensity. The latest official update sent to the UN only covers the years to 2020.
This leaves some more leeway for revisions, even though China’s domestic “statistical communiques”, published every year, have included official numbers up to 2024.
Coal consumption growth around 2022 was likely over-reported, so statistical revisions could reduce reported emissions and narrow the gap to the target. Including process emissions from cement, which have been falling rapidly in recent years, and changing how emissions from fossil fuels used as raw materials in the chemicals industry are accounted for, so-called non-energy use, which has been growing rapidly, could make the target easier to meet.
2. Will the plan upgrade clean-energy targets or pave the way to exceed them?
The need to accelerate carbon-intensity reductions also has implications for clean-energy targets.
The current goal is for non-fossil fuels to make up 25% of energy supplies in 2030, up from the 21% expected to be reached this year.
This expansion would be sufficient to achieve the reduction in carbon intensity needed in the next five years, but only if energy consumption growth slows down very sharply. Growth would need to slow to around 1% per year, from 4.1% in the past five years 2019-2024 and from 3.7% in the first three quarters of 2025.
The emphasis on manufacturing in the Central Committee’s recommendations for the next five-year plan is hard to reconcile with such a sharp slowdown, even if electrification will help reduce primary energy demand. During the current five-year period, China abolished the system of controlling total energy consumption and energy intensity, removing the incentive for local governments to curtail energy-intensive projects and industries.
Even if the ratio of total energy demand growth to GDP growth returned to pre-Covid levels, implying total energy demand growth of 2.5% per year, then the share of non-fossil energy would need to reach 31% by 2030 to deliver the required reduction in carbon intensity.
However, China recently set the target for non-fossil energy in 2035 at just 30%. This risks cementing a level of ambition that is likely too low to enable the 2030 carbon-intensity target to be met, whereas meeting it would require non-fossil energy to reach 30% by 2030.
There is ample scope for China to beat its targets for non-fossil energy.
However, given that the construction of new nuclear and hydropower plants generally takes five years or more in China, only those that are already underway have the chance to be completed by 2030. This leaves wind and solar as the quick-to-deploy power generation options that can deliver more non-fossil energy during this five-year period.
Reaching a much higher share of non-fossil energy in 2030, in turn, would therefore require much faster growth in solar and wind than currently targeted. Both the NDRC power-sector plan for 2025-27 and China’s new NDC aim for the addition of about 200 gigawatts (GW) per year of solar and wind capacity, much lower than the 360GW achieved in 2024.
If China continued to add capacity at similar rates, going beyond the government’s targets and instead installing 250-350GW of new solar and wind in each of the next five years, then this would be sufficient to meet the 2030 intensity target, assuming energy demand rising by 2.5-3.0% per year.
All previous wind and solar targets have been exceeded by a wide margin, as shown in the figure below, so there is a good chance that the current one will be, too.

While the new pricing policy for wind and solar has created a much more uncertain and less supportive policy environment for the development of clean energy, provinces have substantial power to create a more supportive environment.
For example, they can include clean-energy projects and downstream projects using clean electricity and green hydrogen in their five-year plans, as well as developing their local electricity markets in a direction that enables new solar and wind projects.
3. Will the plan set an absolute cap on coal consumption?
In 2020, Xi pledged that China would “gradually reduce coal consumption” during the 2026-30 period. The commitment is somewhat ambiguous.
It could be interpreted as requiring a reduction starting in 2026, or a reduction below 2025 levels by 2030, which in practice would mean coal consumption peaking around the midway point of the five-year period, in other words 2027-28.
In either case, if Xi’s pledge were to be cemented in the 15th five-year plan then it would need to include an absolute reduction in coal consumption during 2026-30. An illustration of what this might look like is shown in the figure below.

However, the commitment to reduce coal consumption was missing from China’s new NDC for 2035 and from the Central Committee’s recommendations for the next five-year plan.
The Central Committee called for “promoting a peak in coal and oil consumption”, which is a looser goal as it could still allow an increase in consumption during the period, if the growth in the first years towards 2030 exceeds the reduction after the peak.
The difference between “peaking” and “reducing” is even larger because China has not defined what “peaking” means, even though peaking carbon emissions is the central goal of China’s climate policy for this decade.
Peaking could be defined as achieving a certain reduction from peak before the deadline, or having policies in place that constrain emissions or coal use. It could be seen as reaching a plateau or as an absolute reduction.
While the commitment to “gradually reduce” coal consumption has seemed to fade from discussion, there have been several publications discussing the peak years for different fossil fuels, which could pave the way for more specific peaking targets.
State news agency Xinhua published an article – only in English – saying that coal consumption would peak around 2027 and oil consumption around 2026, while also mentioning the pledge to reduce coal consumption.
The energy research arm of the National Development and Reform Council had said earlier that coal and oil consumption would peak halfway through the next five-year period, in other words 2027-28, while the China Coal Association advocated a slightly later target of 2028.
Setting a targeted peak year for coal consumption before the half-way point of the five-year period could be a way to implement the coal reduction commitment.
With the fall in oil use in transportation driven by EVs, railways and other low-carbon transportation, oil consumption is expected to peak soon or to have peaked already.
State-owned oil firm CNPC projects that China’s oil consumption will peak in 2025 at 770m tonnes, while Sinopec thinks that continued demand for petrochemical feedstocks will keep oil consumption growing until 2027 and it will then peak at 790-800m tonnes.
4. Will ‘dual control’ of carbon prevent an emission rebound?
With the focus on realising a peak in emissions before 2030, there could be a strong incentive for provincial governments and industries to increase emissions in the early years of the five-year period to lock in a higher level of baseline emissions.
This approach is known as “storming the peak” (碳冲锋) in Chinese and there have been warnings about it ever since Xi announced the current CO2 peaking target in 2020.
Yet, the emphasis on peaking has only increased, with the recent announcement on promoting peaks in coal consumption and oil consumption, as well as the 2035 emission-reduction target being based on “peak levels”.
The policy answer to this is creating a system to control carbon intensity and total CO2 emissions – known as “dual control of carbon” – building on the earlier system for the “dual control of energy” consumption.
Both the State Council and the Central Committee have set the aim of operationalising the “dual control of carbon” system in the 15th five-year plan period.
However, policy documents speak of building the carbon dual-control system during the five-year period rather than it becoming operational at the start of the period.
For example, an authoritative analysis of the Central Committee’s recommendations by China Daily says that “solid progress” is needed in five areas to actually establish the system, including assessment of carbon targets for local governments as well as carbon management for industries and enterprises.
The government set an annual target for reducing carbon intensity for the first time in 2024, but did not set one for 2025, also signaling that there was no preparedness to begin controlling carbon intensity, let alone total carbon emissions, yet.
If the system is not in place at the start of the five-year period, with firm targets, there could be an opportunity for local governments to push for early increases in emissions – and potentially even an incentive for such emission increases, if they expect strict control later.
Another question is how the “dual” element of controlling both carbon intensity and absolute CO2 emissions is realised. While carbon intensity is meant to be the main focus during the next five years, with the priority shifting to reducing absolute emissions after the peak, having the “dual control” in place requires some kind of absolute cap on CO2 emissions.
The State Council has said that China will begin introducing “absolute emissions caps in some industries for the first time” from 2027 under its national carbon market. It is possible that the control of absolute carbon emissions will only apply to these sectors.
The State Council also said that the market would cover all “major emitting sectors” by 2027, but absolute caps would only apply to sectors where emissions have “stabilised”.
5. Will it limit coal-power and chemical-industry growth?
During the current five-year period, China’s leadership went from pledging to “strictly control” new coal-fired power projects to actively promoting them.
If clean-energy growth continues at the rates achieved in recent years, there will be no more space for coal- and gas-fired power generation to expand, even if new capacity is built. Stable or falling demand for power generation from fossil fuels would mean a sharp decline in the number of hours each plant is able to run, eroding its economic viability.
Showing the scale of the planned expansion, researchers from China Energy Investment Corporation, the second-largest coal-power plant operator in China, project that China’s coal-fired power capacity could expand by 300GW from the end of 2024 to 2030 and then plateau at that level for a decade. The projection relies on continued growth of power generation from coal until 2030 and a very slow decline thereafter.
The completion of the 325GW projects already under construction and permitted at the end of 2024, as well as an additional 42GW permitted in the first three quarters of 2025, could in fact lead to a significantly larger increase, if the retirement of existing capacity remains slow.
In effect, China’s policymakers face a choice between slowing down the clean-energy boom, which has been a major driver of economic growth in recent years, upsetting coal project developers, who expect to operate their coal-fired power plants at a high utilisation, or retiring older coal-power plants en masse.
Their response to these choices may not become clear for some time. The top-level five-year plan that will be published in March 2026 will likely provide general guidelines, but the details of capacity development will be relegated to the sectoral plans for energy.
The other sector where fossil fuel-based capacity is rapidly increasing is the chemical industry, both oil and coal-based. In this sector, capacity growth has led directly to increases in output, making the sector the only major driver of emissions increases after early 2024.
The expansion is bound to continue. There are more than 500 petrochemical projects planned by 2030 in China, of which three quarters are already under construction, according to data provider GlobalData.
As such, the emissions growth in the chemical sector is poised to continue in the next few years, whereas meeting China’s 2030 targets and commitments would require either reining it in and bringing emissions back down before 2030, or achieving emission reductions in other sectors that offset the increases.
The expansion of the coal-to-chemicals industry is largely driven by projects producing gas and liquid fuels from coal, which make up 70% of the capacity under construction and in planning, according to a mapping by Anychem Coalchem.
These projects are a way of reducing reliance on imported oil and gas. In these areas, electrification and clean energy offer another solution that can replace imports.
Conclusions
The five-year plans being prepared now will largely determine the peak year and level of China’s emissions, with a major impact on China’s subsequent emission trajectory and on the global climate effort.
The targets in the plan will also be a key test of the determination of China’s leadership to respect previous commitments, despite setbacks.
The country has cultivated a reputation for reliably implementing its commitments. For example, senior officials have said that China’s policy targets represent a “bottom line”, which the policymakers are “definitely certain” about meeting, while contrasting this with other countries’ loftier approach to target-setting.
Depending on how the key questions outlined in this article are answered in the plans for the next five years, however, there is the possibility of a rebound in emissions.
There are several factors contributing to such a possibility: solar- and wind-power deployment could slow down under the new pricing policy, weak targets and a deluge of new coal- and gas-power capacity coming onto the market.
In addition, unfettered expansion of the chemical industry could drive up emissions. And climate targets that limit emissions only after a peak is reached could create an incentive to increase emissions in the short term, unless counteracted by effective policies.
On the other hand, there is also the possibility of the clean-energy boom continuing so that the sector beats the targets it has been set. Policymakers could also prioritise carbon-intensity reductions early in the period to meet China’s 2030 commitments.
Given the major role that clean-energy industries have played in driving China’s economic growth and meeting GDP targets, local governments have a strong incentive to keep the expansion going, even if the central government plans for a slowdown.
During the current five-year period, provinces and state-owned enterprises have been more ambitious than the central government. Provinces can and already have found ways to support clean-energy development beyond central government targets.
Such an outcome would continue a well-established pattern, given all previous wind and solar targets have been exceeded by a wide margin.
The difference now is that a significant exceedance of clean-energy targets would make a much bigger difference, due to the much larger absolute size of the industry.
To date, China’s approach to peaking emissions and pursuing carbon neutrality has focused on expanding the supply and driving down the cost of clean technology, emphasising economic expansion rather than restrictions on fossil-fuel use and emissions, with curbing overcapacity an afterthought.
This suggests that if China’s 2030 targets are to be met, it is more likely to be through the over-delivery of clean energy than as a result of determined regulatory effort.
The post Q&A: Five key climate questions for China’s next ‘five-year plan’ appeared first on Carbon Brief.
Q&A: Five key climate questions for China’s next ‘five-year plan’
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Guest post: How a record-high ‘energy imbalance’ is driving global warming
The planet is heating up more quickly than ever before.
For decades, greenhouse gas emissions caused by human activity have been building up in the atmosphere and trapping ever-higher levels of heat.
The resulting asymmetry between incoming solar energy and energy radiated back out into space – known as “Earth’s energy imbalance” – provides a direct measure of the extent to which humans are disrupting the Earth’s climate system.
This imbalance is growing and in 2025 its 10-year average reached a record high, indicating that global temperatures could increase at even higher rates in the future.
This is among the headline findings of the latest “indicators of global climate change” (IGCC) report, published in the journal Earth System Science Data, which tracks changes in the climate system on an annual basis.
The report, now in its fourth iteration, has been produced by dozens of scientists from around the world.
Its findings are designed to fill the gap between Intergovernmental Panel on Climate Change (IPCC) science reports, which are published every 5-7 years.
In this article, we unpack the IGCC report, which explores how human activity is driving a growing energy imbalance and why monitoring systems to track global climate are so crucial.
(For more on previous IGCC reports, see Carbon Brief’s coverage in 2023, 2024 and 2025.)
Greenhouse gas emissions remain at an all-time high
Global greenhouse gas emissions are continuing to increase, mostly as a result of the use of fossil fuels. However, deforestation, agriculture and industrial processes also play an important role.
Over the most recent decade (2015-24), emissions stood at the equivalent of 54.6bn tonnes of carbon dioxide equivalent (GtCO2e) per year. In 2024, the most recent year for which we have complete data, emissions reached 56.8GtCO2e.
As the chart below shows, these emissions have pushed up atmospheric levels of CO2, methane and nitrous oxide. In 2025, concentrations of these gases reached 425.6 parts per million (ppm), 1936.3 parts per billion (ppb) and 339.4ppb, respectively.
This represents a rise of 3.8%, 3.8% and 2.2%, respectively, since the 2019 levels reported in the IPCC’s sixth assessment report (AR6).

At the same time, declines in emissions of aerosols such as sulphur dioxide, partly as a result of efforts to tackle air pollution, are increasing the Earth’s energy imbalance. This is because aerosols have a cooling effect on the Earth’s climate, counteracting warming from CO2 and other greenhouse gas emissions.
(Tackling sulphur dioxide, alongside other particulate emissions, remains critical because the immediate health and environmental damage they cause far outweighs their short-term cooling effect on the climate.)
The Earth’s energy imbalance is rising rapidly
The Earth’s energy imbalance has long been recognised as a key indicator of how the climate is being affected by human activities.
However, it is only in the last few decades that scientists have been able to record temperature changes deep enough in the ocean to accurately quantify it.
Earth’s energy imbalance measures how quickly excess heat is accumulating in every part of the Earth system, primarily in the ocean, but also in land, ice and atmosphere.
Through this accumulation of heat, the energy imbalance influences the rate of sea level rise and ice melt across the world, as well as increasing the frequency and intensity of extreme weather events, such as storms, floods and droughts.
Without human influence, the Earth’s energy imbalance would be close to zero.
But, as greenhouse gas emissions have built up in the atmosphere, the imbalance has been growing since the 1970s. Recent increases to Earth’s energy imbalance have outpaced those projections made by climate models — indicating the planet could see more warming than expected in the future.
As the right-hand chart below shows, the imbalance is now at a record high, having more than doubled over the past two decades.
It has increased by around 40% since 2019, from an average 0.79 watts per square metre (Wm2) over 2006-18, according to IPCC AR6, to 1.12Wm2 over 2013-25.
The left-hand chart shows how heat is accumulating in the ocean (blues), ice (grey), land (orange) and atmosphere (purple).

Global temperature rise
The excess heat building up in the climate system from the energy imbalance is pushing up global temperatures at a record rate of 0.27C per decade.
We estimate that human-induced warming – the amount of observed global surface
temperature increase attributable to both the direct and indirect effects of human activities – reached 1.37C in 2025. This has risen from 1.0C in 2017, as reported in IPCC AR6.
While natural variability in the climate system – such as El Niño or La Niña events – can also influence temperatures year-to-year, the upward temperature trend we are seeing is being driven by the persistent imbalance in energy.
We now expect global temperatures to exceed the Paris Agreement limit of 1.5C above pre-industrial levels around the year 2030.
This is significant because 1.5C has been identified as the critical dividing line between manageable climate risks and catastrophic, potentially irreversible damage to global ecosystems and human societies.
Heat accumulating throughout the Earth system
While heat is accumulating throughout the Earth system, it is not being distributed evenly around the globe.
Since the 1970s, around 90% of this heat has been taken up by the ocean, affecting marine ecosystems, ocean circulation patterns, sea level rise and climate extremes.
For example, the number of marine heatwave days – periods of unusually high sea surface temperatures – has more than tripled globally since the early 1990s. The year 2025 alone saw 65 days of marine heatwaves – meaning they occurred, on average, more than one day a week.
Meanwhile, the cryosphere – the portion of the Earth made up of frozen water, including glaciers, ice sheets and permafrost – is experiencing widespread ice loss and thawing in response to the growing energy imbalance. This affects ecosystems, sea level rise and infrastructure in polar and high-latitude regions.
Rapid warming has also resulted in record extreme temperatures over land, with average maximum temperatures for any single day over 2016-25 around 1.92C above pre-industrial levels). This is an increase of almost half a degree compared to the previous decade (2006-15).
Sea level rise and the energy imbalance
Sea level rise provides one of the clearest long-term signals of a changing planet.
It is closely linked to Earth’s energy imbalance. As heat accumulates in the ocean, water expands, raising sea levels. Meanwhile, a warming land and atmosphere means addition of water to the oceans through melting of glaciers and ice sheets, also adding to sea level rise.
Over the long-term, sea levels have been rising, on average, at a rate of around 1.8mm per year since 1901, totalling a record 23cm in 2025. This is increasing the risk of coastal flooding, erosion and habitat loss in many low-lying areas around the world.
This rise can be seen in the left-hand chart below, which shows observed global sea level changes from tide gauges (grey and blue dashed lines) and satellites (red dashed lines) since 1901. The solid lines indicate the average across multiple datasets.
Sea level rise is accelerating consistent with the observed increase in Earth’s energy imbalance. Over 2006-25, sea levels have risen at a rate of 3.67mm per year – more than double the rate of 1.69mm per year seen over 1976-95.
This increasing rate is shown in the right-hand figure below, which shows four successive overlapping 20-year periods and the most-recent decade.
(Last year’s transition from El Niño to weak La Niña conditions affected global rainfall patterns and led to a small and temporary fall in global average sea level in 2025. This explains the slight decrease in rate of sea level rise for the most recent decade, which is affected more than the 20-year period 2006-25.)

The bigger picture
Despite greenhouse gas emissions not increasing as rapidly as in the 2000s, this year’s IGCC findings continue to show how far and how fast the climate is changing due to human activity.
A significant increase in decarbonisation efforts in the second half of this decade is required to slow down the rate of human-caused warming and limit the escalation of climate risks and impacts.
These findings, like many others produced by scientists across the globe, rely on international expertise, partnership and the maintenance and availability of global climate datasets and the global observing programmes that underpin them.
This year’s edition of IGCC used more than 40 global datasets produced by research teams around the world, including the NASA satellite record of the Earth’s energy imbalance and the ARGO deep ocean float network.
However, a number of long-term monitoring programmes could be threatened by funding decisions made by governments around the world, most notably the Trump administration in the US.
Local meteorological data and weather balloon measurement programmes in many countries have declined in recent years, especially in Africa, the west Pacific and South America. This reduces scientists’ ability to monitor and understand key indicators of climate change.
This is not just an issue for climate science. Many of these observations are key to weather forecasts and systems that provide early warning for extreme weather. For example, media reports have suggested that recent reductions in weather balloon measurements in Alaska led to a lack of warnings for a recent winter storm.
The continuity and integrity of the climate observations that scientists use to understand how the climate is changing depends on effective and sustained coordination by international organisations, such as the Global Climate Observing System, the World Meteorological Organization and World Climate Research Programme.
Without this data and its coordination, future assessments will be much more difficult at a time when urgent climate action is needed.
The post Guest post: How a record-high ‘energy imbalance’ is driving global warming appeared first on Carbon Brief.
Guest post: How a record-high ‘energy imbalance’ is driving global warming
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