In 1992, scientists warned that humans had to change or the Earth would become unlivable. What's changed 25 years later?
Before Scott Pruitt ran the Environmental Protection Agency, he railed against it. We look at how he's fighting it from the inside.
On a warmer planet, a volcanic eruption might disrupt global temperatures and precipitation for years after it happened.
Certain chemicals chewed a hole in Earth's ozone layer. But regulating those substances doesn't seem to have made much difference.
In the past few months, France, Germany, Canada and the U.K. have all announced initiatives to hire scientists from beyond their borders.
The Heartland Insitute said data used by the EPA should be invalidated because of "politicized adjustments." But scientists say the data is unbiased.
Researchers projected how climate change could affect economies in certain parts of the country.
On Thursday, the country's new ecology minister announced a ban on gas- and diesel-powered vehicle sales by 2040.
Dams across the Amazon River basin power much of South America, but they also could do a lot of damage to the ecosystems there.
New research suggests early Mars had 10 times more water than previously thought.
What does the U.S. withdrawal from the Paris climate accord mean for the future, and why do Republicans keep saying it should be a treaty…
According to those briefed, Trump will argue that the Paris pact is a bad deal for American workers.