UK Pledges Record $2 Billion to Green Climate Fund at G20

UK Prime Minister Rishi Sunak pledged $2 billion to the UN-backed Green Climate Fund at the G20 Leaders Summit in New Delhi, a 12.7% increase on its previous commitment. The pledge strengthens international climate finance that supports developing-country mitigation and adaptation, a priority for India and the broader Global South.

At the G20 Leaders Summit in New Delhi, UK Prime Minister Rishi Sunak pledged $2 billion to the Green Climate Fund (GCF), a 12.7% increase from the UK's previous pledge. The GCF, an operating entity of the UNFCCC financial mechanism, is the world's largest climate fund at $12.8 billion total and has approved projects worth $48.3 billion. The UK becomes the eighth early contributor to GCF's second replenishment (GCF-2), joining Czechia, Austria, Germany, Monaco, Canada, Denmark and South Korea.

The pledge primarily benefits developing nations relying on GCF financing to reduce carbon emissions, transition to cleaner energy and adapt to climate impacts. The UK previously contributed £1.44 billion to the GCF-1 cycle (2020–2023). The commitment adds momentum ahead of the High-Level Pledging Conference in Bonn, Germany, scheduled for October 5, 2023. Indian and Global South governments and project developers seeking concessional climate finance for mitigation and adaptation stand to benefit from a better-resourced second replenishment.

Governments and project developers in developing countries should monitor the High-Level Pledging Conference in Bonn on October 5, 2023, which will determine the scale of GCF-2 resources available for mitigation and adaptation projects. Entities seeking climate finance should track how additional pledges shape the fund's project pipeline, given existing approved projects worth $48.3 billion. Indian stakeholders should follow GCF-2 replenishment outcomes that influence concessional funding availability for clean-energy and resilience initiatives across the Global South.

Key figure — UK pledge: $2 billion (12.7% increase); GCF total: $12.8 billion