Climate

As the Arctic melts, ancient vegetation is revealed.

The hands on the hypothetical Doomsday Clock suggest the world is still in dire risk of apocalypse.

They hope it will help them understand how the ice sheet will respond to climate change.

The world has already changed, said the famed British naturalist.

Will humanity inch closer to "doomsday" in 2019?

Donald Trump's tweets notwithstanding, climate change could lead to a worst-case scenario of extreme snow storms against a backdrop of less snowpack overall.

Southwest Greenland might be a future threat to ocean-level rise

In the coming decades, more than a quarter-million people may die each year as a result of climate change, according to a new review study.

Ocean temperatures reached their highest point since accurate measurements first began in the 1950s.

As sea ice melts, Antarctica may get more sensitive to astronomical cycles.

Echoes of the Little Ice Age still persist more than a mile down in the Pacific Ocean, even as ocean warming looms.

What new mysteries will scientists unravel about Earth in 2019?

More than 8.5 million acres of land in the U.S. burned this year. Here's how the raging flames get their start.

The Arctic is warming faster than ever.

Why did megalodon go extinct? New research has answers, and the shark's high body temperature likely played a part.

Here's the horrifying way these sea creatures met their end more than 250 million years ago.

Warming oceans lead to some strange brain changes in sharks.

Despite warnings that there is little time left to get a handle on global warming, carbon emissions are on the rise.