The 22 nations at the meeting in Estoril, Portugal, made the call a week ahead of a key UN conference, where world leaders will try to thrash out a new climate accord.

"The efforts of developing countries to... adapt to the negative consequences of climate change must be supported by new, additional, sufficient and predictable international capital flows," the countries said in a statement.

The statement further called on "developed countries to present proposals along these lines."

Those present at the summit -- Latin American nations, Spain, Portugal and Andorra -- added they were committed to "cooperating to reach a wide-ranging, ambitious and balanced accord in Copenhagen."

The December 7-18 United Nations climate conference in Copenhagen is tasked with framing a new deal for tackling global warming and its impacts beyond 2012.

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