The Cool Down on MSN

Scientists trace 'super El Niño' to Earth's deadliest die-off as new event threatens record heat

"The Great Dying" nearly wiped out life on Earth about 252 million years ago.

Rafe Pomerance, the Paul Revere of Climate Change, Dies at 79

An environmental lobbyist and activist, he was a pivotal figure in drawing public attention and political support to the ...