In an emotional speech at the United Nations during the Climate Action Summit on Monday, the 16-year-old Swedish climate activist Greta Thunberg appealed to world leaders about the grave need to stop ...

UNITED NATIONS -- Leader after leader told the United Nations on Monday that they will do more to prevent a warming world from reaching even more dangerous levels. But as they made their pledges at ...

NEW YORK -- She stepped onto the biggest of global stages to face the most diverse of audiences, and she made it count. "How dare you?" she kept saying to some of the world's most powerful people.

Climate activist Greta Thunberg has doubled down on her criticism that world and business leaders aren't taking the threat of global warming seriously. At a panel of the World Economic Forum she ...

Climate change activist Greta Thunberg is among a dozen activists on board a charity ship stopped by Israel forces on June 9, attempting to reach the Gaza Strip, sparking international outcry over ...