Science

UN envoy: Keep up hope amid climate change battle

UN envoy: Keep up hope amid climate change battle

COPENHAGEN — The head of the United Nations’ panel on climate change has urged world governments not to be overcome by hopelessness as they negotiate a new agreement to fight...

Gallery: Goofy dinosaur blends Barney and Jar Jar Binks

Goofy dinosaur blends Barney and Jar Jar Binks

WASHINGTON — Nearly 50 years ago, scientists found bones of two large, powerful dinosaur arms in Mongolia and figured they had discovered a fearsome critter with killer claws.

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