"Our citizens are faced with unprecedented climate shocks, we need more resources to prepare to respond in time, in order to save lives and livelihoods and to help people and communities rebuild after disaster. We cannot focus so much on 2050 that we forget 2024."

More than 40,000 people are expected to attend the global climate change summit as questions swirl about the United States' future involvement.

Brazil announced details of its new climate change pledge late on Friday night that sets a target to lower the country's greenhouse gas emissions by 2035, which it will present during the United Nations climate summit COP29 in Azerbaijan,