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

Paleontologist Riley Black traces the cooperation among plants, animals, and ecosystems in “When the Earth Was Green.” ...

But for billions of years before that, our planet’s oceans were not blue at all. Instead, they were a striking shade of green, shaped by ancient microbial life and the chemical composition of early ...

Earth's oceans may have been green for billions of years until the first photosynthetic organisms flooded our atmosphere with oxygen.

A team of astrophysicists, geoscientists, chemists and life scientists affiliated with a host of institutions in Japan has found evidence that billions of years ago, the Earth's oceans were green.

A strange phenomenon has been found: all of the oceans on Earth will turn green in real time. Earth’s Oceans Were Green a ...

The green lights on Earth were captured from the Internation Space Station. The post Astronaut snaps photo of otherworldly ...

A little-known volcano in the remote Kuril Islands, Zavaritzki, links an explosion in 1831 with drastic climate changes.

For a long stretch of Earth’s history, our planet might have looked green from a distance, instead of the pale blue dot we know today. Earth’s green period, which lasted from around 3 billion ...