Nitrogen fertilisers, manure and other agricultural sources drove almost three-quarters of human-caused nitrous oxide emissions in recent years.
That is according to the Global Carbon Project’s second “global nitrogen budget” – an assessment of the origins and climate impacts of the world’s nitrous oxide emissions.
The research, published in Earth System Science Data, finds that nitrous oxide emissions from human activities rose by 40% over the past four decades, partly driven by growing global demand for meat and dairy.
Nitrous oxide emissions over the past decade exceeded even the highest projected levels in emissions pathways, the research finds.
Continuing to emit the greenhouse gas at current rates would “really affect” the world’s ability to achieve the long-term goal of the Paris Agreement to limit global warming to “well below” 2C, the lead author of the study tells Carbon Brief.
One expert, who was not involved in the research, says the findings show “all too clearly” that nitrous oxide emissions “are still going rapidly in the wrong direction”.
Potent greenhouse gas
Nitrous oxide (N2O) is a long-lasting greenhouse gas that is around 270 times more potent than CO2. It is the third-largest contributor to climate change, after CO2 and methane.
Various natural sources generate nitrous oxide, including tiny organisms in the world’s oceans and soils. These natural emitters accounted for 65% of all nitrous oxide emissions over 2010-19.
Human activities caused the remaining 35% of emissions, particularly nitrogen fertiliser use and manure management in agriculture. The burning of fossil fuels and biomass also produce nitrous oxide, but to a lesser extent.
The new study assesses both natural and human-caused sources of nitrous oxide to see how they have changed over time and how they are contributing to climate change.
It divides the sources and sinks into 21 categories, such as direct emissions from nitrogen use in agriculture and the exchange of CO2 between the land and atmosphere .
The researchers use a range of satellite data, models, algorithms and inventories to assess emissions over time.
The study finds that human-caused nitrous oxide emissions “significantly increased” from 1980 to 2020, growing by 40% during this time period. This rise was spurred on, in part, by growing demand for meat and dairy.
This is a jump of 10% in these human-caused emissions from the last nitrous oxide assessment, which covered data over 1980-2016.
However, the new study includes more categories than the previous global assessment, including emissions from microbe activity in the shallow waters over continental shelves. The researchers in the study say this explains some of the higher estimates in the new report.
Concentrations of the greenhouse gas in the atmosphere have also risen faster in the past three years than any other time since 1980.
Prof Hanqin Tian is the lead author of the study and an environmental sciences professor at Boston College. He tells Carbon Brief that nitrous oxide emissions continuing at current rates would “really affect the Paris climate agreement” goals.
Natural nitrous oxide emissions, on the other hand, were “relatively stable” over the period covered by the research. Tian explains:
“In terms of the total number, natural emissions are very high. But over long time periods, they stay stable. So natural emissions do not really contribute to climate change from pre-industrial times to now.”
Human-caused emissions have increased significantly. The below infographic outlines the changes in different nitrous oxide emissions sources from 2010 to 2019.
Prof Dave Reay, the chair in carbon management and education at the University of Edinburgh, who was not involved in the study, says that the research is “really significant” for both scientists and policymakers. He tells Carbon Brief:
“Nitrous oxide’s importance can sometimes be obscured by the larger climate forcing effects of CO2 and methane, yet every missed opportunity to cut nitrous oxide emissions drags the world still further away from achieving the Paris climate goals.”
The researchers highlight that human-caused nitrous oxide emissions need to be cut by at least one-fifth by 2050 to help limit long-term warming to 2C, according to the Intergovernmental Panel on Climate Change (IPCC).
Reay says this study shows “all too clearly” that these emissions are “still going rapidly in the wrong direction”.
Agricultural emissions
Agriculture was the “major driver” of increased human-caused nitrous oxide emissions over the past four decades, the study says. In total, the researchers find that the sector was responsible for 74% of these emissions over 2010-19.
While agricultural emissions increased over time, other human-caused nitrous oxide emissions from fossil fuels and industry decreased slightly between 1980 and 2020.
Cutting nitrogen use in agriculture is a “quite complex issue related to food production, food security” and a range of other issues, Tian says.
Requirements to cut nitrous oxide emissions, particularly from livestock, have been a major political issue in the Netherlands and other countries. Nitrous oxide emissions are “expected to continue rising” over the next few decades due to the growing demand for food, the study says.
Reay says that reducing nitrogen use in agriculture “can yield benefits not just for climate change mitigation, but for food production, air and water quality and biodiversity, too”. He adds:
“The array of strategies to address these losses – primarily through improving so-called nitrogen use efficiency across our food systems – are already showing positive results in some areas of Europe and south-east Asia.”
An excess of nitrogen used on the land can wash into lakes, rivers and oceans. This run-off causes damage to plants, animals and humans and spurs on toxic algae. Nitrous oxide also contributes to depletion of the ozone layer.
Top-emitting countries
The study also examines emissions in 18 different regions, finding that they grew in some countries and decreased in others over the past four decades.
China, India, the US, Brazil and Russia were the five biggest nitrous oxide emitters in 2020, the study findings show.
Human-caused emissions increased by 157% in India, 135% in China and 131% in Brazil over 1980-2020.
China alone made up 40% of the overall increase in global human-caused nitrous oxide emissions between 1980 and 2020.
Although the country remains the biggest emitter, China’s nitrous oxide emissions have decreased in recent years as a result of efforts to use nitrogen fertilisers more efficiently, Tian says.
Nitrous oxide emissions have reduced in several parts of the world since 1980: Europe, Russia, Australia, New Zealand, Japan and Korea.
Europe – the biggest nitrous oxide emitter in 1980 – has seen the most significant drop in the four decades since. Emissions fell by one-third (31%) during this time, largely due to fossil fuel and industry emissions cuts in the 1990s.
Agriculture-related nitrous oxide emissions also decreased in Europe during this time, but the drop has levelled off since the 2000s, the study notes.
Exceeding future projections
The scientists also explore how current nitrous oxide emissions compare with those from scenarios of future projections of climate change.
The charts below show how global nitrous oxide concentrations in the atmosphere (black line) compare with projections under the “Representative Concentration Pathways” (RCPs, left) and the “Shared Socioeconomic Pathways” (SSPs, right).
The charts highlight that atmospheric concentrations of the greenhouse gas over the past decade have exceeded even the projections under the very-high-emissions trajectory, RCP8.5 (red dashed line).
The researchers outline some “major uncertainties” with their findings and the scientific understanding of where nitrous oxide comes from.
These include the understanding of emissions from soils in tropical ecosystems in the Amazon Basin, the Congo Basin and south-east Asia, alongside areas using high levels of fertilisers, such as the US “corn belt”.
The study also mentions uncertainties around estimates for the impact of deforestation on nitrous oxide emissions.
The researchers propose setting up a global network to better monitor and model nitrous oxide emissions. Reay says that this is a “very timely suggestion”, adding:
“With all nations needing to submit their updated national plans for climate action in the run up to COP30 in Brazil next year, better measurement of nitrous oxide emissions holds the promise of better reporting and, crucially, better efforts to cut them.”
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Agriculture ‘major driver’ of rise in nitrous oxide emissions over past 40 years
As COP30 reaches its midway point in the Brazilian city of Belém, Carbon Brief has hosted its second “ask us anything” webinar to exclusively answer questions submitted by holders of the Insider Pass.
The webinar kicked off with an overview of where the negotiations are on Day 8, plus what it was like to be among the 70,000-strong “people’s march” on Saturday.
At present, there are 44 agreed texts at COP30, with many negotiating streams remaining highly contested, as shown by Carbon Brief’s live text tracker.
Topics discussed during the webinar included the potential of a “cover text” at COP30, plus updates on negotiations such as the global goal on adaptation and the just-transition work programme.
Journalists also answered questions on the potential for a “fossil-fuel phaseout roadmap”, the impact of finance – including the Baku to Belém roadmap, which was released the week before COP30 – and Article 6.
The webinar was moderated by Carbon Brief’s director and editor, Leo Hickman, and featured six of our journalists – half of them on the ground in Belém – covering all elements of the summit:
- Dr Simon Evans – deputy editor and senior policy editor
- Daisy Dunne – associate editor
- Josh Gabbatiss – policy correspondent
- Orla Dwyer – food, land and nature reporter
- Aruna Chandrasekhar – land, food systems and nature journalist
- Molly Lempriere – policy section editor
A recording of the webinar (below) is now available to watch on YouTube.
Watch Carbon Brief’s first COP30 “ask us anything” webinar here.
The post COP30: Carbon Brief’s second ‘ask us anything’ webinar appeared first on Carbon Brief.
Greenhouse Gases
DeBriefed 14 November 2025: COP30 DeBriefed: Finance and 1.5C loom large at talks; China’s emissions dip; Negotiations explained
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Finance and 1.5C dominate talks
AGENDA ADOPTED: Negotiations at the COP30 UN climate talks began in the Brazilian city of Belém this week, attended in person by Carbon Brief’s Daisy Dunne, Josh Gabbatiss and Anika Patel. The Brazilian hosts scored an unexpected early win by dodging an “agenda fight” over proposals to add various contentious issues to the official docket. Despite the neat footwork, four issues kept off the agreed agenda – climate finance; emissions reporting; trade measures; ambition and 1.5C – still loom large, having merely been diverted into “presidency consultations”.
PRESIDENCY PROMISES: By Wednesday, the presidency was promising “good news” at a plenary later that day, which had been due to offer an update on progress with the four extra items. Instead, it ended abruptly, with COP30 president André Corrêa do Lago promising to say more at another plenary scheduled for tomorrow. It remains unclear how the presidency intends to deal with these thorny issues, leaving the COP rumour-mill in full swing.
MINISTERIAL MAGIC: Aside from the extra issues, the official agenda at COP30 already has more than 100 items to contend with, including how to track progress on adaptation and how to ensure a “just transition” as emissions-cutting measures are implemented. (You can follow them all via the Carbon Brief text tracker.) While draft texts have started to emerge, many items remain stalled, with persistent divisions along familiar lines (see below). Negotiators will be hoping that ministers arriving over the weekend are primed to unlock progress. Brazil has appointed pairs of these politicians to push for deals in key areas.
Around the world
- Ethiopia has said it will host COP32 after beating out a bid from Nigeria, Reuters reported. Turkey and Australia are still in deadlock over who should host COP31, with a decision due by the end of these talks, BBC News reported.
- China will not contribute to Brazil’s Tropical Forest Forever Facility, Bloomberg reported, while Devex said two multilateral development banks are considering paying in. More than $5.5bn has been pledged so far, which BusinessGreen noted is “well short” of a $25bn target. The fund was labelled a “false solution” by some Indigenous and civil society groups.
- After Brazilian president Luiz Inácio Lula da Silva called for a “roadmap” away from fossil fuels ahead of COP’s opening, rumours are swirling over how this might take shape. A new declaration spearheaded by Colombia and a roadmap with backing from a number of countries, including Denmark, the UK, France, Kenya and Germany, are being floated as possible options.
- China is currently among the countries pushing for “provision of finance from rich countries and unilateral trade measures” to be included on the agenda, reported Climate Home News. Chinese delegation head Li Gao told Agence France-Presse it is “crucial” for developed countries to fulfil their $300bn commitment.
- Dozens of Indigenous protesters forced their way into COP’s blue zone on Tuesday night, expressing anger at a lack of access to the negotiations, Reuters said. On Friday, a peaceful protest blocked the entrance to the blue zone, causing lengthy queues as delegates were forced to use a side door.
344%
The rise in the global use of solar from 2024 to 2035 under “stated policies”, according to Carbon Brief’s analysis of the latest World Energy Outlook from the International Energy Agency.
Latest climate research
- The 2025 Global Carbon Budget, covered in detail by Carbon Brief, finds that CO2 emissions from fossil fuels and cement will rise 1.1% in 2025 | Earth System Science Data
- In its November 2025 update, Climate Action Tracker says that its projections of global warming by 2100 have “barely moved” in four years | Climate Action Tracker
- The AI server industry in the US is unlikely to meet its 2030 net-zero goals “without substantial reliance on highly uncertain” carbon offsets | Nature Sustainability
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
China’s carbon dioxide emissions have “now been flat or falling for 18 months” since March 2024, analysis for Carbon Brief has found, due, in particular, to the transport, cement and steel sectors. The analysis has been covered widely in publications including China’s Global Times, the New York Times, Financial Times, Reuters, Bloomberg and on the frontpage of the Guardian.
Spotlight
What to expect from COP30 talks
This week, Carbon Brief’s expert team walk through what is happening with the biggest issues being negotiated at COP30.
‘Cover text’
Can you judge a COP by its cover text? At COP, the presidency has the option to pull together a new negotiated “cover text”, an overarching political overview of decisions agreed at the summit, along with other issues not on the agenda that it wants to draw attention to.
COP30 president André Corrêa do Lago might have dismissed a catch-all “cover decision” as a “last-minute solution” ahead of COP and dodged the question since, but other parties have been less shy in hinting that a cover text is, indeed, coming.
Cover decisions are often the product of fraught negotiations, high stakes, too little time and too many parties to accommodate.
This year, there is added pressure to address what is happening in the wider world outside the “negotiations” and to politically signal that the UN climate process is alive and making progress, despite the withdrawal of the US.
What elements could go into it? As a member of the “BASIC” group of nations comprising Brazil, South Africa, India and China, trade measures could find a place. But ideas pushed by Brazilian president Lula for new “roadmaps” away from fossil fuels and deforestation might find a place. Finance, however, could be much trickier to fit in.
Adaptation
One of the key expected outcomes of COP30 is agreement on a list of 100 indicators that can be used to measure progress under the “global goal on adaptation” (GGA). After two years of work by experts, negotiations got underway with a suggested list that had been whittled down from nearly 10,000 possible indicators.
Despite the focus on the GGA by the COP30 presidency and others, division has quickly emerged around the timeline for the adoption of the indicators. The African Group has notably requested a two-year work programme to further refine the list, while other parties are pushing for the indicators to be adopted in Belém as planned.
On Wednesday, an informal note was published that compiled elements for a draft decision. Significantly, for the first time under the GGA, this included a call for developed countries to “at least triple their collective provision” of adaptation finance by 2030, with a target to reach $120bn. This echoed a suggested target originally set out by the negotiating group of least developed countries (LDCs), supported by the African Group, Arab Group and the Association of Latin America and the Caribbean (AILAC) countries.
Just transition and mitigation work programmes
Over the past year, civil society groups have been calling for the establishment of a mechanism to enact the agreed UNFCCC principles of a “just transition”. This gained momentum on Wednesday within negotiations of the just transition work programme (JTWP), when the G77 and China called for the development of the “Belem Action Mechanism” (BAM).
Chile, the Alliance of Small Island States (AOSIS), India and other developing countries supported the mechanism. However, Norway, the UK, Australia and Japan pushed back. Other long-standing points of contention have also raised their heads, including around unilateral trade measures and references to fossil fuels and aligning to global temperature goals.
Within the mitigation work programme (MWP) talks, negotiators are looking to build on two dialogues held this year. The main themes at COP30 are the links between the MWP and the global stocktake (see below) and the future of the programme itself.
Old divisions have emerged in negotiations, focused predominantly on the mandate of the MWP and the potential development of a digital platform as part of its continuation.
UAE dialogue
The landmark outcome of the first “global stocktake”, agreed at COP28 in Dubai, called on all countries to contribute to a “transition away from fossil fuels”. It also mandated a “UAE dialogue” on “implementing the global stocktake outcomes”.
Two years later, countries remain deadlocked over what this dialogue should discuss. Many want it to cover all parts of the stocktake, including the energy transition, while others want an exclusive focus on climate finance. They also disagree on whether the dialogue should have substantive outcomes, including a formal process to keep discussing the issues raised.
Having failed to reach agreement at COP29 last year, the latest draft text shows parties are just as far apart in Belém, nearly halfway into the summit.
Finance
Climate finance for developing countries does not occupy a high-profile position in the formal COP30 negotiations. Yet, as demonstrated by its role in adaptation talks and the agenda dispute, finance still has the potential to derail proceedings.
Ahead of the conference, the COP30 and COP29 presidencies released their “Baku to Belém roadmap”, exploring how finance could be ramped up to $1.3tn by 2035.
An influential group of experts also released new analysis showing a “feasible path” to this goal, leaning on private finance. They said this work would provide a “valuable signal” to those in the finance sector.
However, with no position in the Belém negotiations, it was unclear how – or whether – the roadmap would be taken forward by governments beyond COP30.
Instead, finance negotiators have been occupied with technical matters, but these still show signs of division. For example, some developing-party groups have pushed back against an EU priority goal to extend a “dialogue” about “making finance flows consistent” with climate objectives.
Watch, read, listen
UNDER THREAT: The Bureau of Investigative Journalism told the story of Kim Rebholz – an environmentalist who was threatened for his work curbing illegal logging in Democratic Republic of Congo’s mangrove parks.
SPOTLIGHT ON STARMER: YouTuber Simon Clark has published a video of himself interviewing prime minister Keir Starmer about the UK’s actions on climate and nature, at COP30 and domestically.
INSIDE COP:Outrage and Optimism is running a “special edition” podcast series in partnership with the COP30 presidency, bringing “exclusive, behind-the-scenes access” to the conference.
Coming up
- 14-21 November: UN Climate Change conference (COP30) heads into its crucial second week in Belém
- 15 November: Informal stocktaking plenary of COP30 talks by the Brazilian presidency
- 17 November: Launch of the Global Methane Status Report
Pick of the jobs
- International Energy Agency, intern, China programme | Stipend: €1,000/month. Location: Paris
- Channel 4, sustainability production executive | Salary: £48,125. Location: Bristol, Glasgow or Leeds, UK
- World Bank, environmental specialist | Salary: “GF” grade. Location: Yaounde, Cameroon
- Greenpeace, climate and energy campaigner | Salary: Unknown. Location: Bangkok, Thailand
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
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The post DeBriefed 14 November 2025: COP30 DeBriefed: Finance and 1.5C loom large at talks; China’s emissions dip; Negotiations explained appeared first on Carbon Brief.
Developed countries have poured billions of dollars into railways across Asia, solar projects in Africa and thousands of other climate-related initiatives overseas, according to a joint investigation by Carbon Brief and the Guardian.
A group of nations, including much of Europe, the US and Japan, is obliged under the Paris Agreement to provide international “climate finance” to developing countries.
This financial support can come in forms such as grants and loans from various sources, including aid budgets, multilateral development banks (MDBs) and private investments.
The flagship climate-finance target for more than a decade was to hit “$100bn a year” by 2020, which developed countries met – albeit two years late – in 2022.
Carbon Brief and the Guardian have analysed data across more than 20,000 global climate projects funded using public money from developed nations, including official 2021 and 2022 figures, which have only just been published.
The data provides a detailed insight into how the $100bn goal was reached, including funding for everything from sustainable farming in Niger to electricity projects in the United Arab Emirates (UAE).
With developed countries now pledging to ramp up climate finance further, the analysis also shows how donors often rely on loans and private finance to meet their obligations.
- The $100bn target was reached in 2022, boosted by private finance and the US
- Relatively wealthy countries – including China and the UAE – were major recipients
- A tenth of all direct climate finance went to Japan-backed rail projects
- There was funding for more than 500 clean-power projects in African countries
- Some ‘least developed’ countries relied heavily on loans
- US shares in development banks significantly inflated its total contribution
- Adaptation finance still lags, but climate-vulnerable countries received more
- Methodology
The $100bn target was reached in 2022, boosted by private finance and the US
A small handful of countries have consistently been the top climate-finance donors. This remained the case in 2021 and 2022, with just four countries – Japan, Germany, France and the US – responsible for half of all climate finance, the analysis shows.
Not only was 2022 the first year in which the $100bn goal was achieved, it also saw the largest ever single-year increase in climate finance – a rise of $26.3bn, or 29%, according to the Organisation for Economic Cooperation and Development (OECD).
(It is worth noting that while OECD figures are often referenced as the most “official” climate-finance totals, they are contested.)
Half of this increase came from a $12.6bn rise in support from MDBs – financial institutions that are owned and funded by member states. The rest can be attributed to two main factors.
First, while several donors ramped up spending, the US drove by far the biggest increase in “bilateral” finance, provided directly by the country itself.
After years of stalling during the first Donald Trump presidency, when Joe Biden took office in 2021, the nation’s bilateral climate aid more than tripled between that year and the next.
Meanwhile, after years of “stagnating” at around $15bn, the amount of private investments “mobilised” in developing countries by developed-country spending surged to around $22bn in 2022, according to OECD estimates.
As the chart below shows, the combination of increased US contributions and higher private investments pushed climate finance up by nearly $14bn in 2022, helping it to reach $115.9bn in total.
Both of these trends are still pertinent in 2025, following a new pledge made at COP29 by developed countries to ramp up climate finance to “at least” $300bn a year by 2035.
After years of increasing rapidly under Biden, US bilateral climate finance for developing countries has been effectively eliminated during Trump’s second presidential term. Other major donors, including Germany, France and the UK, have also cut their aid budgets.
This means there will be more pressure on other sources of climate finance in the coming years. In particular, developed countries hope that private finance can help to raise finance into the trillions of dollars required to achieve developing countries’ climate goals.
Some higher-income countries – including China and the UAE – were major recipients
The greatest beneficiaries of international climate finance tend to be large, middle-income countries, such as Egypt, the Philippines and Brazil, according to the analysis.
(The World Bank classifies countries as being low-, lower-middle, upper-middle or high-income, according to their gross national income per person.)
Lower-middle income India received $14.1bn in 2021 and 2022 – nearly all as loans – making it by far the largest recipient, as the chart below shows.
Most of India’s top projects were metro and rail lines in cities, such as Delhi and Mumbai, which accounted for 46% of its total climate finance in those years, Carbon Brief analysis shows. (See: A tenth of all direct climate finance went to Japan-backed rail projects.)
As the world’s second-largest economy and a major funder of energy projects overseas, China – classified as upper-middle income by the World Bank – has faced mounting pressure to start officially providing climate finance. At the same time, the nation received more than $3bn of climate finance over this period, as it is still classed as a developing country under the UN climate system.
High-income Gulf petrostates are also among the countries receiving funds. For example, the UAE received Japanese finance of $1.3bn for an electricity transmission project and a waste-to-energy project.
To some extent, such large shares simply reflect the size of many middle-income countries. India received 9% of all bilateral and multilateral climate finance, but it is home to 18% of the global population.
The focus on these nations also reflects the kind of big-budget infrastructure that is being funded.
“Middle-income economies tend to have the financial and institutional capacity to design, appraise and deliver large-scale projects,” Sarah Colenbrander, climate programme director at global affairs thinktank ODI, tells Carbon Brief.
Donors might focus on relatively higher-income or powerful nations out of self-interest, for example, to align with geopolitical, trade or commercial interests. But, as Colenbrander tells Carbon Brief, there are also plenty of “high-minded” reasons to do so, not least the opportunity to help curb their relatively high emissions.
A tenth of all direct climate finance went to Japan-backed rail projects
Japan is the largest climate-finance donor, accounting for a fifth of all bilateral and multilateral finance in 2021 and 2022, the analysis shows.
Of the 20 largest bilateral projects, 13 were Japanese. These include $7.6bn of loans for eight rail and metro systems in major cities across India, Bangladesh and the Philippines.
In fact, Japan’s funding for rail projects was so substantial that it made up 11% of all bilateral finance. This amounts to 4% of climate finance from all sources.
While these rail projects are likely to provide benefits to developing countries, they also highlight some of the issues identified by aid experts with Japan’s climate-finance practices.
As was the case for more than 80% of Japan’s climate finance, all of these projects were funded with loans, which must be paid back. Nearly a fifth of Japan’s total loans were described as “non-concessional”, meaning they were offered on terms equivalent to those offered on the open market, rather than at more favourable rates.
Many Japan-backed projects also stipulate that Japanese companies and workers must be hired to work on them, reflecting the government’s policies to “proactively support” and “facilitate” the overseas expansion of Japanese business using aid.
Documents show that rail projects in India and the Philippines were granted on this basis.
This practice can be beneficial, especially in sectors such as rail infrastructure, where Japanese companies have considerable expertise. Yet, analysts have questioned Japan’s approach, which they argue can disproportionately benefit the donor itself.
“Counting these loans as climate finance presents a moral hazard…And such loans tied to Japanese businesses make it worse,” Yuri Onodera, a climate specialist at Friends of the Earth Japan, tells Carbon Brief.
There was funding for more than 500 clean-power projects in African countries
Around 730 million people still lack access to electricity, with roughly 80% of those people living in sub-Saharan Africa.
As part of their climate-finance pledges, donor countries often support renewable projects, transmission lines and other initiatives that can provide clean power to those in need.
Carbon Brief and the Guardian have identified funding for more than 500 clean-power and transmission projects in African countries that lack universal electricity access. In total, these funds amounted to $7.6bn over the two years 2021-22.
Among them was support for Chad’s first-ever solar project, a new hydropower plant in Mozambique and the expansion of electricity grids in Nigeria.
The distribution of funds across the continent – excluding multi-country programmes – can be seen in the map below.
A lack of clear rules about what can be classified as “climate finance” in the UN climate process means donors sometimes include support for fossil fuels – particularly gas power – in their totals.
For example, Japan counted an $18m loan to a Japanese liquified natural gas (LNG) company in Senegal and roughly $1m for gas projects in Tanzania.
However, such funding accounted for a tiny fraction of sub-Saharan Africa’s climate finance overall, amounting to less than 1% of all power-sector funding across the region, based on the projects identified in this analysis.
Some ‘least developed’ countries relied heavily on loans
One of the most persistent criticisms levelled at climate finance by developing-country governments and civil society groups is that so much of it is provided in the form of loans.
While loans are commonly used to fund major projects, they are sometimes offered on unfavourable terms and add to the burden of countries that are already struggling with debt.
The International Institute for Environment and Development (IIED) has shown that the 44 “least developed countries” (LDCs) spend twice as much servicing debts as they receive in climate finance.
Developed nations pledged $33.4bn in 2021 and 2022 to the 44 LDCs to help them finance climate projects. In total, $17.2bn – more than half of the funding – was provided as loans, primarily from Japan, France and development banks.
The chart below shows how, for a number of LDCs, loans continue to be the main way in which they receive international climate funds.
For example, Angola received $216.7m in loans from France – primarily to support its water infrastructure – and $571.6m in loans from various multilateral institutions, together amounting to nearly all the nation’s climate finance over this period.
Oxfam, which describes developed countries as “unjustly indebting poor countries” via loans, estimates that the “true value” of climate finance in 2022 was $28-35bn, roughly a quarter of the OECD’s estimate. This is largely due to Oxfam discounting much of the value of loans.
However, Jan Kowalzig, a senior policy adviser at Oxfam Germany, tells Carbon Brief that, “generally, LDCs receive loans at better conditions” than they would have been able to secure on the open market, sometimes referred to as “concessional” loans.
US shares in development banks significantly raised its total contribution
The US has been one of the world’s top climate-finance providers, accounting for around 15% of all bilateral and multilateral contributions in 2021 and 2022.
Despite this, US contributions have consistently been viewed as relatively low when considering the nation’s wealth and historical role in driving climate change.
Moreover, much of the climate finance that can be attributed to the US comes from its MDB shareholdings, rather than direct contributions from its aid budget.
These banks are owned by member countries and the US is a dominant shareholder in many of them.
The analysis reveals that around three-quarters of US climate finance provided in 2021-22 came via multilateral sources, particularly the World Bank. (For information on how this analysis attributes multilateral funding to donors, see Methodology.)
Among other major donors – specifically Japan, France and Germany – only a third of their finance was channelled through multilateral institutions. As the chart below shows, multilateral contributions lifted the US from being the fifth-largest donor to the third-largest.
While the Trump administration has cut virtually all overseas climate funding and broadly rejected multilateral institutions, the US has not yet abandoned its influential stake in MDBs.
Prior to COP29 in 2024, only MDB funds that could be attributed to developed country inputs were counted towards the $100bn goal, as part of those nations’ Paris Agreement duties.
However, countries have now agreed that “all climate-related outflows” from MDBs – no matter which donor country they are attributed to – will count towards the new $300bn goal.
This means that, as long as MDBs continue extensively funding climate projects, there will still be a large slice of climate finance that can be attributed to the US, even as it exits the Paris Agreement.
Adaptation finance still lags, but climate-vulnerable countries received more
Under the Paris Agreement, developed countries committed to achieving “a balance between adaptation and mitigation” in their climate finance.
The idea is that, while it is important to focus on mitigation – or cutting emissions – by supporting projects such as clean energy, there is also a need to help developing countries prepare for the threat of climate change.
Generally, adaptation projects are less likely to provide a return on investment and are, therefore, more reliant on grant-based finance.
In practice, a “balance” between adaptation and mitigation has never been reached. Over the period of this analysis, 58% of climate finance was for mitigation, 33% was for adaptation and the remainder was for projects that contributed to both goals.
This reflects a preference for mitigation-based financing via loans among some major donors, particularly Japan and France. Both countries provided just a third of their finance for adaptation projects in 2021 and 2022.
However, among some of the most climate-vulnerable countries – including land-locked parts of Africa and small islands – most funding was for adaptation, as the chart below shows.
Among the projects receiving climate-adaptation funds were those supporting sustainable agriculture in Niger, improving disaster resilience in Micronesia and helping those in Somalia who have been internally displaced by “climate change and food crises”.
Methodology
The joint Guardian and Carbon Brief analysis of climate finance includes the bilateral and multilateral public finance that developed countries pledged for climate projects in developing countries. It covers the years 2021 and 2022.
(These “developed” countries are the 23 “Annex II” nations, plus the EU, that are obliged to provide climate finance under the Paris Agreement.)
The analysis excludes other types of funding that contribute to the $100bn climate-finance target for climate projects, such as export credits and private finance “mobilised” by public investments. Where these have been referenced, the figures are OECD estimates. They are excluded from the analysis because export credits are a small fraction of the total, while private finance mobilised cannot be attributed to specific donor countries.
Data for bilateral funding comes from the biennial transparency reports (BTRs) each country submits to the UNFCCC. The lag in official reporting means the most recent figures – published around the end of 2024 and start of 2025 – only go up to 2022.
Many of the bilateral projects recorded by countries do not specify single recipients, but instead mention several countries. These projects have not been included when calculating the amount of finance individual developing countries received, but they are included in the total figures.
The multilateral funding, including projects funded by MDBs and multilateral climate funds, comes from the OECD. Many countries – including developing countries – pay into these institutions, which then use their money to fund climate projects and, in the case of MDBs, raise additional finance from capital markets.
This analysis calculated the shares of the “outflows” from multilateral institutions that can be attributed to developed countries. It adapts the approach used by the OECD to calculate these attributable shares for developed countries as a whole group.
As the OECD does not publish individual donor country shares that make up the total developed-country contribution, this analysis calculated each country’s attributable shares based on shareholdings in MDBs and cumulative contributions to multilateral funds. This was based on a methodology used by analysts at the World Resources Institute and ODI. There were some multilateral funds that could not be assigned using this methodology, which are therefore not captured in each country’s multilateral contribution.
The post Analysis: Seven charts showing how the $100bn climate-finance goal was met appeared first on Carbon Brief.
Analysis: Seven charts showing how the $100bn climate-finance goal was met
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