The Amazon rainforest is now soaking up only half as much carbon as it did in the 1990s, a 30-year study published in Nature says.
A wolf catches a salmon while a brown bear looks on in this video captured in Katmai National Park, Alaska.
A higher temperature for a shorter duration or a lower temperature for a longer duration? Mr. Green has the answer.
Mr. Green shows you how to find out if your local power supply is clean (or not).
Decrepit dams are clogging Earth's arteries and interfering with fish migration. These three stunning dam detonation videos show that sometimes even massive explosions can be good for the environment.
A new study suggests cockroaches have individual personalities.