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DPA
DPA
President Joe Biden kicked off a climate summit of 40 world leaders on Thursday by promising to cut US greenhouse gas emissions in half by decade’s end, one of many pledges at the online meeting to tackle global warming. “Scientists tell us that this is the decisive decade. This is the decade we must make decisions that will avoid the worst consequences of the climate crisis,” Biden said, calling it a “moment of peril.” The two-day meeting is aimed at rallying major economies to set more ambitious carbon-slashing goals and is seen as important preparation ahead of the UN climate conference in …