WASHINGTON (AP) — U.S. climate envoy John Kerry said last month’s international global warming talks didn’t do enough to speed up cuts in emissions of heat-trapping gases.

Kerry told The Associated Press in an interview Wednesday that there was progress on some aspects of reducing carbon pollution during the United Nations summit in Sharm El-Sheikh, Egypt. But he said there could and should have been much more and that what was done on the issue was overshadowed by a historic, but what he called potentially “pyrrhic,†for poor nations victimized by a warming world.

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