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.

US President Donald Trump stirred up fresh outrage on social media Monday with a tweet mocking an impassioned speech made by 16-year-old activist Greta Thunberg at the UN climate summit in New York.

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 ...