Citing catastrophic flooding in Pakistan that displaced millions of people this year, a speaker said rains came from the sky but floods came from greed in America
Biden has invited 40 world leaders to the climate summit, part of his effort to make the fight against global warming a top priority.
Putin, in his speech, will "outline Russia's approaches in the context of forging broad international cooperation aimed at overcoming the negative effects of global climate change," the Kremlin said.