On 1 February, India’s finance minister Nirmala Sitharaman unveiled the government’s budget for 2026, which included a new $2.2bn funding push for carbon capture technologies.
In the absence of its new international climate pledge under the Paris Agreement, the budget offers a glimpse into the key climate and energy security priorities of the world’s third-largest emitter, amid increasing geopolitical tensions and trade challenges.
While Sitharaman’s budget speech did not mention climate change directly, she said: “Today, we face an external environment in which trade and multilateralism are imperilled and access to resources and supply chains are disrupted.”
Sitharaman emphasised that “new technologies are transforming production systems while sharply increasing demands on water, energy and critical minerals”.
The budget sets out: support for the mining and processing of critical minerals and rare earths; import duty exemptions for nuclear power equipment; and support for renewables, particularly rooftop solar.
However, unlike in some previous years, the 2026 budget does not include specific climate adaptation measures.
Below, Carbon Brief runs through five key climate- and energy-focused announcements from the budget.
- Carbon capture, utilisation and storage
- Critical minerals and rare earth ‘corridors’
- Nuclear energy
- Renewables
- Adaptation
Carbon capture, utilisation and storage
The biggest climate-related budget announcement was $2.2bn to support carbon capture, utilisation and storage (CCUS) technologies in India over the next 5 years.
These are technologies that capture carbon dioxide (CO2) as it is released, then use or store it underground or under the sea.
This funding is aimed at decarbonising five of India’s high-emitting industrial sectors – power, steel, cement, refineries and chemicals. These sectors are “staring at the risk” of coming under the EU’s carbon adjustment mechanism (CBAM), even after a recent EU-India trade deal, according to Sitharaman.
The funding is meant to align with a roadmap released last year that sees CCUS as a “core technological pillar” of India’s 2070 net-zero strategy, particularly for “decarbonising sectors where viable alternatives are limited”, notes the government’s roadmap.
According to the Intergovernmental Panel on Climate Change (IPCC) sixth assessment report, however, the need for CCUS to mitigate industrial emissions “may be overestimated”, compared to measures such as energy and material efficiency and electrification.
Speaking to Carbon Brief, Dr Vikram Vishal, a professor of earth sciences at the Indian Institute of Technology, Bombay (IIT-B),, describes the budget move as a “big welcome step for industrial decarbonisation and India’s net-zero ambitions as a whole”.
Vishal says that the funding could go towards getting “big demonstration plants to near-commercial plants” that could entail even bigger investments in the future.
He tells Carbon Brief:
“India is blessed with both onshore and offshore availability for carbon storage. But while utilisation exists, storage has not happened, per se, even at a decent scale. We [would] need to build transportation infrastructure from the point source of capture at scale, on land and offshore. While offshore storage is very low risk, onshore presents a closer proximity to emission sources.”
However, that could also mean closer proximity to densely populated or protected areas.
Vishal adds that India has a very large theoretical storage potential, even a quarter of which would allow for up to 150bn tonnes of CO2 to be stored. This could sustain CCUS for hundreds of years, Vishal says, adding: “And by that time, the energy transition would have happened, right?”
Critical minerals and rare-earth ‘corridors’
Mining, sourcing and processing “critical minerals” and rare earths is another key area of India’s 2026 budget.
It proposes establishing “dedicated rare-earth corridors” in the “mineral-rich” coastal states of Odisha, Kerala, Andhra Pradesh and Tamil Nadu to “promote mining, processing, research and manufacturing”. These corridors are intended to complement a $815m rare-earth permanent-magnet scheme announced in November.
In addition, the budget supports “incentivising prospecting and exploration” for rare-earth minerals, such as monazite, as well as others that the government wants to include in its list of “critical minerals”.
Last week, for instance, India classified coking coal – which is predominantly used in making steel – as a “critical and strategic mineral”, removing regulatory measures such as the need to consult affected communities before developing new mines.
Sehr Raheja, programme officer at New Delhi thinktank Centre for Science Environment, tells Carbon Brief that “moving up the critical-minerals value chain” is “increasingly essential” for the energy transition in developing countries.
She adds that some of the measures announced in India’s budget “point in that direction”, explaining:
“Globally, developing countries often stay stuck in the extraction stages of value chains and capture the least value. While duty exemptions for critical mineral processing and battery manufacturing signal intent to build domestic manufacturing capacity, the extent to which these new efforts deliver sustained value will only become apparent over time.”
Rahul Basu, research director at the Goa Foundation, which advocates for “intergenerational equity” in mining, tells Carbon Brief:
“Rare earths are not particularly rare. What is difficult is separating and refining them. China imports ore from around the world, including [the] US. Their competitive advantage lies in processing, including the ability to tolerate high pollution levels.
“India should perfect the processing technology with imported ores first. It is the critical piece. Not mining. We seem to want to mine the same beaches that are already seeing sea-level rise.”
Nuclear energy
The Indian government has also lifted customs duties on imports of nuclear power equipment within the 2026 budget.
Under the changes, equipment for all nuclear power plants will not be subject to customs duties until 2035, irrespective of capacity.
The announcement follows India enacting a landmark new nuclear act, dubbed the “Shanti” act, in December 2025. This seeks to privatise and invite foreign participation in the country’s nuclear energy sector, which has been largely state-run for decades and has a long history of public protests over safety and land-acquisition concerns.
The Shanti act – which is an acronym for “sustainable harnessing and advancement of nuclear energy for transforming India” – aims to help India increase its nuclear capacity tenfold to 100 gigawatts (GW) by 2047.
This coincides with 100 years since India’s independence and is “the year India aims to attain developed-nation status”, according to prime minister Narendra Modi.
Renewables
Support for renewables in India’s budget this year is significant, but “uneven”, experts tell Carbon Brief.
Allocations to India’s Ministry of New and Renewable Energy (MNRE) grew by 24% to a “record high” in the 2026 budget, with the bulk going to the prime minister’s flagship rooftop solar scheme. The government also cut import duties on lithium-ion cells for battery storage systems, as well as on inputs for solar-panel glass manufacturing.
However, Vibhuti Garg, South Asia director for the Institute for Energy Economics and Financial Analysis, tells Carbon Brief that spending on wind energy and – “more critically” – on transmission and energy storage has either “stagnated or declined” this year.
Garg says grid infrastructure is “fundamental” to renewable expansion. She explains:
“Transmission infrastructure and storage are fundamental to integrating higher shares of renewable energy into the grid. As renewable penetration rises, these elements become not optional but indispensable, and the current level of support falls short of what is required.”
Adaptation
The budget does not announce any specific adaptation measures or schemes, although it does mention a plan to develop and rejuvenate reservoirs and water bodies and to “strengthen” fisheries value chains in coastal areas.
The budget does not mention or include measures related to heat stress or its impact on productivity and workers in sectors such as agriculture.
According to India’s national economic survey tabled ahead of the budget, adaptation and “resilience-related” domestic spending “surged” from 3.7% of the country’s GDP in 2016-17 to 5.6% in 2022-23.
Yet, unlike earlier budgets, allocations to and expenditure from India’s National Adaptation Fund for Climate Change are not separately visible in the 2026 document.
Harjeet Singh, climate adaptation expert and founding director at the Satat Sampada Climate Foundation, tells Carbon Brief that this budget was a “missed opportunity” and a response “not commensurate to the needs [for adaptation] on [the] ground or investment at the scale of crisis that we are facing”.
Singh adds that it fails to recognise the “huge” economic impacts already being felt in India. He says:
“If a budget doesn’t recognise how climate change is already eroding India’s development – causing huge economic losses – and is going to affect our GDP growth, it means that you aren’t really acting, or nudging states to do more.
“It was a missed opportunity to tell the world that we do see adaptation as a problem and we are acting on it, but we also need international cooperation.”
The post Five key climate and energy announcements in India’s budget for 2026 appeared first on Carbon Brief.
Five key climate and energy announcements in India’s budget for 2026
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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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