On anniversary of first Earth Day, a look at what's happened since. April 22, 2010— -- On April 22, 1970, the very first Earth Day, more than 20 million people joined in demonstrations across the ...

Negative stories about climate change come at us every day, but there are positive stories bubbling up that illustrate the innovations being made to slow the pace of the warming climate and conserve ...

WASHINGTON (AP) — Cheap Trick, British rocker Dave Mason and teen pop group Kicking Daisies will perform on Earth Day at the National Mall. Earth Day Network president Kathleen Rogers said the theme ...