Global warming forced scientists to change the way they look at El Niño

The Pacific Ocean is warming so quickly that scientists had to find a new method for detecting and predicting El Niño and La Niña events.

A cheating claim violated the ‘spirit of curling’ at the Olympics. The sport is moving on

Global interest in curling surged when a cheating controversy erupted at the Winter Olympics. It rocked a staid sport known ...

Winter Olympics Day 11: Alysa Liu stars in women’s figure skating short program, Japan holds top spots

Can the American trio of Alysa Liu, Amber Glenn and Isabeau Levito take one step towards getting Team USA its first women’s figure skating gold in 24 years? Follow CNN for live updates.