Clouds played an important role in the history of climate - Phys.org

Were Earth's oceans completely covered by ice during the Cryogenian period, about 700 million years ago, or was there an ice-free belt of open water around the equator where sponges and other forms of life could survive? Using global climate models, a team of…

Were Earth's oceans completely covered by ice during the Cryogenian period, about 700 million years ago, or was there an ice-free belt of open water around the equator where sponges and other forms o… [+4391 chars]

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