Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising ...

For most of human history, Earth has been known as the “Pale Blue Dot,” a term popularized by astronomer Carl Sagan when referring to the iconic 1990 image taken by Voyager 1. But for billions of ...

The Green Planet looks at the relationships plants share with the world around them. As we have come to expect from these natural history series, the team behind it travelled all over the world to ...

Researchers specifically advocated reducing the use of nitrous oxide—270 times more potent than CO2 in warming the planet—and increasing ... of implementing greener anesthesia in hospitals ...