Rich nations will Monday debate promised aid and compensation to developing countries affected by global warming as the COP26 climate summit in Scottish city of Glasgow enters its final week. Hosts Britain are set to announce 290 million pounds ($391 million) in new funding amid “billions in additional international funding” already committed by countries such as the United States, Japan and Denmark for vulnerable nations, many of which have been the worst hit by climate change.

“We must act now to stop climate change from pushing more people into poverty. We know that climate impacts disproportionately affect those already most vulnerable,” said Anne-Marie Trevelyan, Britain’s Secretary of State for International Trade and President of the Board of Trade, in a statement.

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“We are aiming for significant change that will ultimately contribute to sustainable development and a climate resilient future for all, with no one left behind,” she added.

Ahead of the Glasgow summit, senior officials from Britain, Canada and Germany, had said current data shows rich countries had missed a 2020 deadline to provide poor nations with $100 billion in aid each year.

Failure to fulfil the pledge first made in 2009 and reaffirmed at the 2015 Paris climate talks, had “been a source of deep frustration for developing countries,” said Alok Sharma, President for COP26 and Britain’s Minister of State at the Cabinet Office.

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Around 120 world leaders and thousands of delegates are attending the climate talks, which have seen more than 80 countries pledge to cut methane emissions by 30% by the end of 2030 in what US President Joe Biden termed as as a “game-changing commitment.”

More than 100 world leaders also pledged at the COP26 summit to halt and reverse deforestation by the end of next decade.

The United Nations has warned that any further failure to limit global warming to the 1.5C target would prove catastrophic.

(With inputs from Associated Press)