SNOWBALL EARTH | |
The Snowball Earth website examines the evidence and theory behind the snowball earth hypothesis, the idea that the globe was covered by ice for long periods roughly 2220, 710 and 636 million years ago. | |
Keywords : snowball earth, ice age, low-latitude glaciation, Proterozoic, Cryogenian, Precambrian, extreme weather, origins of life |
Last Update : | 13/December/2011 |
Google PR : | 6 |
Internal links : | 24 |
External links : | 2 |
Archive : | Check how did the site look in the past? |