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So it turns out Britain's voters aren't the only ones backing Brexit. The term -- a fixture in headlines around the world throughout 2016 -- has been named Word of the Year.

Akhil Reed Amar says the Donald Trump narrative on impeachment shows he doesn't understand the Constitution.

French police begin evacuation of hundreds of migrants from camp at Stalingrad metro station.

In Iceland, several kilometers below ground, a drilling rig named Thor will soon penetrate the area around a magma chamber, to tap into water as hot as lava.

British Prime Minister Theresa May has always accepted that Brexit was going to be hard.

CNN's Arwa Damon talks to a woman living in a village near Mosul, Iraq, who says she was raped by an ISIS fighter, and ISIS threatened her children.

China's richest man just bought an iconic American entertainment company.

As advancing Iraqi troops prepare to enter the key city of Mosul, ISIS' media arm has released audio purportedly featuring the terror group's leader, Abu Bakr al-Baghdadi, attempting to rally ISIS fighters.

With climate change denial melting in the face of scientific reality, the 2016 campaign is likely to be the last in which the Republican Party can get away with nominating a presidential candidate who refuses to recognize global warming. In other words, now we can accelerate efforts to protect the climate.

The U.K. High Court ruled that members of parliament must be given a say on Britain leaving the European Union. CNN's Diana Magnay explains what happens next.

He has been secretly posting about Mosul since the summer of 2014, after the militant men in black overran his hometown.

Netflix's latest documentary, executive produced by Leonardo DiCaprio, heads to the front lines in the war against ivory. From Kenyan reserves to undercover stings in Hong Kong, the brave few are on a quest to drag the African elephant from the brink of extinction. But will the world lend them its support?

This NASA animation shows the rapid decline in the Arctic's perennial sea ice from 1984-2016.