BELEM – Delegates of the U.N. climate talks on Saturday worked to find common ground on a host of proposals, including a push by many nations to explicitly cite the cause of global warming: the burning of oil, gas and coal to power our world.

The annual talks are this year being held in Belem, a Brazilian city on the edge of the Amazon rainforest. They were scheduled to wrap up Friday, but negotiators blew past that deadline and it wasn't clear when they may finish.

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Juan Carlos Monterrey Gomez, a top negotiator for Panama, said Friday that the decades-long United Nations process risks “becoming a clown show” for the omission. His nation was among 36 to object to a proposal from the conference president, André Corrêa do Lago of host Brazil, because it doesn’t prov

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