World's Richest Countries Under Pressure to Deliver Climate Funding for Poor UN Secretary-General António Guterres said $100 billion is the "bare minimum." By Beh Lih Yi July 9 (Thomson Reuters Foundation) — The world's 20 largest economies face mounting calls to boost climate finance for poorer nations as ministers meet on Friday in Italy, with green groups warning a failure to deliver fresh money could throw November's key climate talks into doubt. Developed nations are under pressure ahead of the COP26 climate conference in Scotland to deliver a promised $100 billion a year for vulnerable countries to adopt clean energy and adapt to a warmer planet, up from about $80 billion in 2018.