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 ...

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.

:: "If you as a climate activist don't also fight for a free Palestine and an end to colonialism and oppression all over the world, then you should not be able to call yourself a climate activist. You ...

THE HAGUE (Reuters) - Thousands of Dutch children skipped school to join a global climate strike on Friday, blocking traffic and asking their leaders "how dare you?" in a reference to Swedish teenage ...

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.