International Climate Finance
Source: gov.uk (2025-10-09)

International Climate Finance is a UK government commitment to support developing countries to respond to the challenges and opportunities of climate change.

View the 2025 International Climate Finance results (https://www.gov.uk/government/publications/uk-international-climate-finance-results-2025).

UK International Climate Finance (ICF) helps the UK deliver on our commitments to developing countries under the Paris Climate Agreement. The UK government is supporting developing nations to pursue green-growth pathways, access clean energy, reduce deforestation and protect nature, build green infrastructure and increase capacity for climate adaptation and resilience

Climate change and nature loss are among the most pressing challenges that we face globally. Urgent action is needed before 2030 to reduce emissions in line with a 1.5 degrees pathway (https://www.ipcc.ch/report/sixth-assessment-report-cycle/) and avoid the worst impacts of climate change, which will hit low- and middle-income countries the hardest.

Our choices and actions now, and in the years to come, will have profound, long-term consequences for our planet and our way of life. This includes the natural environment and biodiversity, global prosperity, poverty eradication and health. Without effective global action to limit and manage the impact of climate change, up to 132 million people (PDF, 389KB) (https://documents1.worldbank.org/curated/en/706751601388457990/pdf/Revised-Estimates-of-the-Impact-of-Climate-Change-on-Extreme-Poverty-by-2030.pdf) could be pushed into extreme poverty by 2030.

UK International Climate Finance (ICF) plays a crucial role in addressing this global challenge. The UK is on track to deliver £11.6 billion in ICF between 2021/22 and 2025/26, and is committed to maintaining a balance in spend between adaptation and mitigation. This includes up to £1 billion (https://www.gov.uk/guidance/ayrton-fund) to support clean energy, research, development and demonstration, and at least £3 billion on protecting, restoring, and sustainably managing nature, with £1.5 billion on forests.

The UK is also on track to treble our funding for adaptation from £500 billion in 2019 to £1.5 billion in 2025. We will be conducting impact assessments to ensure value for money in a 0.3% official development assistance (ODA) context.

UK ICF has helped 137 million people adapt to the effects of climate change, provided 89 million people with improved access to clean energy, and helped to mobilise billions in private investment.

UK ICF and 4 government departments have responsibility for investing ICF:
- Foreign, Commonwealth and Development Office (FCDO)
- Department for Energy Security and Net Zero (DESNZ)
- Department for Environment, Food and Rural Affairs (Defra)
- Department for Science, Innovation and Technology (DSIT)
The UK is proud of its role working with other countries to create the Sustainable Development Goals (https://sdgs.un.org/goals) (SDGs), which represent collective ambition and a shared vision for a better world by 2030. Unless we tackle climate and nature loss, the development gains of recent decades are under threat of reversal.

Overview

Domestically and internationally the UK is a leader on climate change. We played a pivotal role in securing the Paris Agreement in 2015, where the world came together to agree a plan to limit temperature rises to below 2 degrees. We are the first major economy to halve its emissions – having cut them by 50% between 1990 and 2022 (https://www.gov.uk/government/news/uk-first-major-economy-to-halve-emissions#:~:text=New%20official%20statistics%20confirm%20UK,50%25%20between%201990%20and%202022.&text=The%20UK%20is%20the%20first,official%20statistics%20released%20today%20confirm), while growing the economy by 79%. We have also cut emissions faster (https://www.gov.uk/government/news/uk-first-major-economy-to-halve-emissions#:~:text=The%20UK%20is%20over%2Ddelivering,the%20burden%20on%20hardworking%20families.) than any other G7 country over the last decade and have some of the world’s most ambitious legally binding targets. We have ended UK support for unabated coal power generation and, across the world, UK businesses are helping to make the global low carbon transition a reality.

The UK honours its international commitments. Alongside other developed countries, we are committed to continuing to deliver on the pledge to jointly mobilise $100 billion per year in climate finance to developing countries from public and private sources, and to working towards the new climate finance goal agreed at COP29.

We are amongst the world’s leading providers of climate finance and our climate finance is of a high quality, with a significant proportion provided in the form of grants. We ensure that climate finance programmes are designed to be responsive to country needs; are adaptable to changing circumstances; are capable of driving transformational change and offer value for money.

In order to meet the scale of finance needed to tackle the climate crisis, we will continue to work to mobilise the private sector and position the UK as the green finance capital of the world, including taking steps to set a world-leading sustainable finance regulatory framework.

We will also use partnerships to accelerate the required transitions, including through Just Energy Transition Partnerships (JETPs). And we will address the specific needs of those on the frontlines of the climate crisis, in particular the Least Developed Countries (LDCs) and Small Island Developing States (SIDS).

The UK’s ICF focuses on driving transformation and systemic shifts required to achieve the Paris Agreement goals and deliver on the Glasgow Climate Pact . We are strengthening the gender-responsiveness and inclusivity of UK climate finance for both adaptation and mitigation, including by increasing the proportion of climate finance that has gender equality as a principal or significant objective as defined by the OECD Development Assistance Committee Gender Equality (https://www.oecd.org/development/gender-development/) policy marker.

Alongside ICF, the UK is taking action to ensure that all our new bilateral ODA spending is aligned with the Paris Agreement..

Paris alignment is embedded into FCDO’s Programme Operating Framework (https://www.gov.uk/government/publications/fcdo-programme-operating-framework) to ensure ongoing alignment. This will help to ensure that the UK’s bilateral ODA spend is consistent with the low carbon and climate resilient development pathways that are critical for delivering on the Paris Agreement.

Our annual results

Our ICF programmes are having a global impact and delivering value for money, as set out in our published annual International Climate Finance (ICF) results (https://www.gov.uk/government/publications/uk-international-climate-finance-results-2025), including the underlying pipeline code. View previous ICF results publications and KPI methodologies (https://www.gov.uk/guidance/uk-international-climate-finance-results).

Each year we publish a set of ICF Results covering the collective achievements of our ICF programmes through a set of key performance indicators. Although ICF Results are not Official Statistics, where possible we follow the Code of Practice for Statistics. This UK Climate Finance results: statement of voluntary compliance with the Code of Practice for Statistics (https://assets.publishing.service.gov.uk/media/63519c29d3bf7f19406d2f5a/statement-of-voluntary-compliance-with-code-of-practice-for-statistics.odt) (ODT, 15 KB) demonstrates the steps taken in recent years to improve the trustworthiness, quality and value of ICF Results.

We are committed to understanding and measuring the impact of our investments, and annually publish a set of key results. The ICF Results are one way we monitor these, however, we also publish programme-specific data including annual reviews, Log frames, and business cases at DevTracker (https://devtracker.fcdo.gov.uk/).

Evaluation

Learning is essential to achieve maximum impact and value-for-money of ICF. Under a cross-departmental ICF monitoring, evaluation and learning programme, 3 independent evaluations were externally commissioned to address evidence gaps related to ICF policy and strategy.

See the evaluations on the UK Climate Finance Results page (https://www.gov.uk/government/publications/uk-climate-finance-results#evaluation-reports) and the International Climate Finance programmes: synthesis of learning (https://www.gov.uk/government/publications/international-climate-finance-programmes-synthesis-of-learning) page.

Case studies
- Protecting mangroves in Madagascar and Indonesia (https://www.gov.uk/government/case-studies/protecting-mangroves-in-madagascar-and-indonesia)
- Supporting farmers to go green in Zambia (https://www.gov.uk/government/case-studies/supporting-farmers-to-go-green-in-zambia)
- Helping communities adapt to storms in Bangladesh (https://www.gov.uk/government/case-studies/helping-communities-adapt-to-storms-in-bangladesh)
- Unlocking billions in private capital to tackle climate change (https://www.gov.uk/government/case-studies/unlocking-billions-in-private-capital-to-tackle-climate-change)
Further information on ICF projects can be found on https://devtracker.fcdo.gov.uk/

Contact details

For further details about the ICF, get in touch with FCDO, DESNZ or Defra using the contact details below.

xxx@xxx.xx (mailto:xxx@xxx.xx)

xxx@xxx.xx (mailto:xxx@xxx.xx)

Further information

External review

The work of ICF was last reviewed by the Independent Commission for Aid Impact in 2024. You can read details of the review below -
- Independent Commission for Aid Impact Audit of ICF (February 2019) (https://icai.independent.gov.uk/html-version/uk-climate-finance/)
- Government Response to ICAI Audit (https://www.gov.uk/government/publications/dfid-decc-and-defra-management-response-to-the-independent-commission-for-aid-impact-recommendations-on-the-uks-international-climate-fund)
UK reporting of ICF Spend
- UK Biennial Finance Communication to the United Nations Framework Convention on Climate Change (PDF, 410KB) (https://www4.unfccc.int/sites/SubmissionsStaging/Documents/202212201128---22-12-16%202022%20UK%20Biennial%20Finance%20Communication.pdf?_gl=1*17fyoeo*_ga*ODY4NzYzNzQ4LjE2NjQ4NzYyNjk.*_ga_7ZZWT14N79*MTcxMzE4NjE4Ni4yMC4wLjE3MTMxODYxODcuMC4wLjA.)
- 8th National Communication and Biennial Report to the United Nations Framework Convention on Climate Change (https://www.gov.uk/government/publications/uks-eighth-national-communication-and-fifth-biennial-report-under-the-un-framework-convention-on-climate-change)