Greenhouse gases reach a new record as nations fall behind on climate pledges

A cow walks through a field as an oil pumpjack and a flare burning off methane and other hydrocarbons stand in the background in the Permian Basin in Jal, N.M., Oct. 14, 2021.

The three main greenhouse gases hit record high levels in the atmosphere last year, the U.N. weather agency said Wednesday, calling it an ominous sign.

(Image credit: David Goldman/AP)



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