$100 Billion Climate Finance Goal

The $100 billion climate finance goal is a collective commitment first announced by developed countries at the 2009 UN Climate Change Conference (COP15) in Copenhagen and formalized in the Copenhagen Accord. Under the pledge, wealthy nations agreed to jointly mobilize USD 100 billion per year by 2020 from public and private sources to support mitigation and adaptation action in developing countries. The goal was anchored in the UNFCCC principle of common but differentiated responsibilities and respective capabilities (CBDR-RC).

At COP16 in Cancún (2010), the commitment was incorporated into formal UNFCCC decisions, and the Green Climate Fund (GCF) was established as a key channel for delivering this finance. The Paris Agreement (2015) extended the $100 billion target through 2025, after which a New Collective Quantified Goal (NCQG) would replace it.

The goal has been highly contentious. The OECD, which tracks progress, reported that developed countries mobilized roughly USD 83.3 billion in 2020 — missing the deadline. The OECD later announced the target was met for the first time in 2022, reaching approximately USD 115.9 billion. Developing countries and civil society groups, however, have disputed OECD accounting methods, arguing that loans (rather than grants), re-labelled development aid, and inflated private-finance estimates overstate true climate support. Oxfam and others have produced significantly lower "true value" estimates.

Persistent shortfalls eroded trust in the UNFCCC process and shaped negotiations at subsequent COPs, including debates over loss and damage finance. At COP29 in Baku (2024), parties agreed on the NCQG successor: developed countries committed to mobilize at least USD 300 billion per year by 2035 for developing countries, with a broader aspirational call to scale total climate finance to USD 1.3 trillion annually. Developing-country negotiators widely criticized the figure as inadequate relative to assessed needs.