Wittingly or unwittingly, United Airlines gave Donald Trump a birthday present that more than made up for the lackluster army ...

A salty surge in the Southern Ocean is melting Antarctic sea ice from below — and causing dramatic changes scientists didn’t ...

Picture this: you’re standing in a frozen landscape, breath visible in the crisp air, when suddenly the sky explodes into a ...

Greenland's relatively isolated indigenous culture finds itself increasingly exposed to the world just as Trump pushes to ...

Paris agreement’s goal of limiting global warming to 1.5 degrees Celsius was thought to be the threshold for averting severe ...