EarthSphere
Published in

EarthSphere

How cold can it get?

Earth has run hot and cold for 4.5 billion years

Snowball Earth (Modified by ArcheanWeb) — Original Credit: By Neethis, Wikimedia-Copyrighted free use

The earth is a blue jewel floating in the dark vacuum of space. A stunningly beautiful planet we can see in pictures from satellites and the space station. We live on a water planet with 71 percent of its surface area covered by oceans, which absorb most of the color from the light spectrum and reflect predominately blue wavelength radiation…

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William House

William House

Exploring relationships between people and our planet — Stories and articles promoting science, art, environmental awareness, and human insights.