The US has promised $3 billion to the Green Climate Fund (GCF), for reducing emissions and adapting to climate change in developing countries.

US vice-president Kamala Harris made the promise at the Cop28 summit in Dubai on Saturday, claiming the US is “a leader in the effort to expand international climate finance”.

Together with pledges from Italy, Switzerland, Portugal and Estonia, it brings the total raised in the latest GCF replenishment round to $12.7 billion.

If delivered, it puts the GCF on course for what its secretariat describes in internal documents as a middling level of ambition.

But to deliver, Harris and Joe Biden ‘s administration will have to persuade Republicans in Congress to approve the money or take control of Congress by winning elections.

Mixed reaction

Reaction to the pledge was mixed. ActionAid USA’s Kelly Stone said it was a “far cry from what is needed”.

She pointed out that the US still owed the GCF $1 billion from a $3 billion Obama-era pledge in 2014. “In reality, they are only pledging $2 billion in new money,” she said.

Erika Lennon, a GCF-watcher from the Center for International Environmental Law, said that pledging less than the $3 billion Barack Obama pledged nine years ago is “unacceptable”.

“The climate crisis has worsened, the need for climate finance is greater and the US pledge has stagnated. The US can and must do better,” she said.

Liane Schalatek from the Heinrich-Böll-Stiftung foundation said it was "well below a fair share" and E3G's Alden Meyer said the US was "punching well below its weight".

The US's $3 billion is the biggest pledge of the fundraising round but its economy is far bigger than the other big donors in Europe and Japan.

But the Sierra Club's head Eva Hernandez said she was "encouraged" and the NRDC's Manish Bapna said it was "a promising signal of the USA's commitment to spur clean energy and promote resilience in vulnerable countries".

Congress problems

The US failed to deliver all of Obama's $3 billion pledge because of opposition from Republicans in Congress and later from Donald Trump in the White House. The Biden administration faces the same political headwinds.

In Congress, the House of Representatives, is currently controlled by the Republican Party. The Senate has a slim majority for Biden's Democrats.

Alden Meyer said getting GCF spending through the House of Representatives was not possible "unless they change their stance on it".

"There's three things they don't like about the GCF," he joked, "that its green, that it's for the climate and that it's a fund - other than that, they're fine with it".

As it happened: World leaders at Cop28

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