Tens of thousands of fish have died off northwestern Australia, as a large and long-lasting marine heat wave intensifies.

"How to Survive is a Webby Award-winning series offering expert tips for surviving disasters, attacks, and life's toughest ...

Scorching heat in Rio de Janeiro, Brazil, has millions of people sweltering during the day, but they’re finding some relief ...

Bolivia and Chile are in talks to restart gas exports to Argentina amid a surge in demand spurred by a summer heat wave, ...

Extreme conditions helped fuel the fast-moving fires that destroyed thousands of homes. Scientists are working to figure out ...

Extreme heat could kill as many as 2.3 million people in Europe unless countries get better at cutting emissions.