Scientists say a record-smashing March heat wave in the U.S. Southwest shows climate change is already driving more dangerous weather extremes.

A new study shows heat waves increasingly trigger sudden, severe droughts across the world as the planet warms.

The Trump administration’s Environmental Protection Agency Wednesday proposed a new ruling that heat-trapping carbon gas “emissions from fossil fuel-fired power plants do not contribute significantly to dangerous air pollution.

The U.N. weather agency says Earth endured its hottest Northern Hemisphere summer ever measured with a record warm August capping a season of brutal and deadly temperatures.

A quick scientific study finds that the recent deadly heat wave in the Pacific Northwest would be virtually impossible without climate change.