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Re: [Phys-L] snowball Earth



On 4/15/21 9:26 AM, Anthony Lapinski asked about:

snowball Earth

See
https://www.climate.gov/news-features/climate-qa/whats-coldest-earths-ever-been
and references therein.

It discusses in broad terms the evidence, including "glacial erratic"
rocks. Also plausibility calculations, considering the makeup of the
atmosphere. Also the role of vulcanism.