AP EXPLAINS: How Madrid talks fell short on climate ambition

MADRID (AP) — This year's U.N. climate negotiations in Madrid, the longest in 25 nearly annual such gatherings, ended Sunday with major polluters resisting calls to ramp up efforts to keep global warm...

Science warnings, US retreat add urgency to UN climate talks

MADRID (AP) — Mass protests, a last-minute venue change and talk of climate tipping points are adding some unplanned drama to this year’s international talks on tackling global warming. ...