Four tribes and one Native Alaskan village need to be relocated due to rising waters.

The icon of the movement for action on climate change is a teenager. Shouldn't that worry us?

Inside the effort to rescue Europe’s unwelcome immigrants

The private sector has long been the bad guy in environmental stories. But with Brazil's president overseeing rapid deforestation, big companies could get a second act as eco-champions.

President Trump is not the first president to weaken the international liberal order.

President Trump's United Nations address criticizing international institutions is based on a complete ignorance of the U.N.'s history.

What does nationalism mean in a contested state?

Here's exactly what the U.S. loses as Trump scraps the Iran nuclear deal.

His rambling, incoherent speech to the U.N. General Assembly was proof that the president only has one audience in mind—and it isn't a global one.

In Western Sahara, 165,000 refugees are still fighting for their freedom.

Trump's refugee ban abandons America's claims to moral leadership.

China is now closer to the international norm on issues like trade, climate change, and Israel-Palestine. Is this the end of American dominance?