Extreme weather makes being out in nature more risky as the flood deaths at Camp Mystic in Texas showed.

A new study from Oxford University finds that a common European songbird sometimes divorces its partner between breeding seasons.

One of the strongest earthquakes ever recorded struck Russia's Far East early Wednesday, sending tsunami waves into Japan and Hawaii and across the Pacific.

The Trump administration proposes eliminating a 2009 finding that greenhouse gases endanger people. That would undermine the EPA's climate change regulations for power plants and cars.

The Trump administration has effectively eliminated two rules designed to promote cleaner cars. Now, as the EPA suggests not considering carbon dioxide to be pollution, the last rule is poised to fall.

It's one of the largest in the world and is meant to help replenish reefs that have suffered from bleaching.

The proposal would overturn endangerment finding, which determined that greenhouse gas emissions can be regulated under the Clean Air Act.

Some homes are still standing after fires in Southern California destroyed thousands of homes earlier this year, but testing shows they are full of toxic chemicals.

National Weather Service meteorologist Nick Luchetti assesses the severity of this month's heat wave and why it is particularly concerning.

Nations must act on climate change under international law — if they don’t, they could be held liable.