UNEP Adaptation Gap Report 2026: Developing Countries Need $305 Billion a Year but Get About $28 Billion
The United Nations Environment Programme (UNEP) released its Adaptation Gap Report 2026. It says developing countries need about $305 billion a year to adapt to climate change (that is, to protect people, farms and cities from heat, floods and droughts that are already happening).
This need could rise to about $420 billion a year by 2035 once inflation is counted. Private-sector needs, which are mostly left out of this estimate, could add about $260 billion a year in the 2030s.
International public adaptation money from developed to developing countries was only $28.2 billion in 2024. With $3.2 billion of private money brought in by public funds, the total was about $31.4 billion.
Even if this international money is tripled (as called for at COP30 in Belém), it would reach only $85 to 120 billion a year by 2035, meeting just 20 to 29% of needs. Adding domestic public spending (about $50 billion a year now) still leaves more than half of the need unmet.
Loans made up 55% of the money. Very little reaches local people: from 2016 to 2023, only 0.17% of international adaptation finance clearly mentioned locally led or community-led action.
UNEP counted 2,339 major climate-related events between 2020 and 2025, and about 70% of them hit low- and middle-income countries.
Emissions Gap Report (UNEP): Measuring How Far the World Is From Its Climate Goals
UNEP publishes a family of yearly "gap" reports before each UN climate summit (COP). The best known is the Emissions Gap Report, which measures the gap between the greenhouse gases the world will release and what it should release to meet the Paris Agreement temperature goals. Its sister report, the Adaptation Gap Report, measures a different gap: the difference between what countries need to cope with climate change and what they actually have, in money, planning and action. Both reports work like a yearly report card that the climate talks cannot ignore.
The 2026 edition of UNEP's Adaptation Gap Report is the source of today's headline numbers. It shows that adaptation money is growing far more slowly than adaptation needs, so the "gap" keeps widening.
Adaptation Finance Under the UNFCCC and Paris Agreement
Adaptation finance is money spent to help people, farms, cities and nature cope with climate impacts that are already happening or can no longer be avoided. Examples are heat-tolerant seeds, early warning systems, stronger embankments and heat action plans. Under the UN climate treaty (UNFCCC) and the Paris Agreement, rich countries are expected to provide this money to developing countries. Mitigation (cutting emissions) has always received far more money than adaptation, which is why poorer countries keep asking for "balance".
The report shows the Glasgow doubling pledge did not close the gap, and even the Belém tripling goal would cover less than a third of needs. It also shows that adaptation money is mostly loans and rarely reaches local communities, which are the key debates in adaptation finance.
New Collective Quantified Goal (NCQG) on Climate Finance
The New Collective Quantified Goal (NCQG) is the new target for how much climate money should flow to developing countries each year. It replaced the old promise of $100 billion a year, made in 2009. It was agreed at COP29 in Baku, Azerbaijan, in November 2024. It covers money for both mitigation and adaptation.
The Adaptation Gap Report shows that adaptation needs alone (about $305 billion a year) are larger than the whole $300 billion NCQG goal for 2035. This strengthens the developing countries' argument that the NCQG is not enough.
- Adaptation finance need of developing countries: about $305 billion a year; about $420 billion a year by 2035 with inflation
- Private-sector adaptation needs (mostly excluded): about $260 billion a year in the 2030s
- International public adaptation finance in 2024: $28.2 billion (about $31.4 billion with $3.2 billion private mobilised)
- Tripling would give $85 to 120 billion a year by 2035, only 20 to 29% of needs
- Domestic public adaptation spending: about $50 billion a year, possibly $69 billion by 2035
- Loans: 55% of adaptation finance; concessional finance: 88% of funds to LDCs, 78% to SIDS
- South-South adaptation finance: $3.9 billion (2019) to $9.7 billion (2024)
- LDCs and SIDS combined need: $49 to 51 billion a year; low-income countries may need about 4% of GDP
- Only 0.17% of international adaptation finance (2016 to 2023) explicitly mentioned locally led action
- Only 26 of 112 costed national plans had dedicated gender and inclusion allocations
- 2,339 significant climate-related events in 2020 to 2025; about 70% in low- and middle-income countries
- Kenya's Financing Locally Led Climate Action programme (2021): over 1,775 investments across 45 counties