Snowball Earth wasn’t fully frozen: ice-free oases sheltered early life | The-14

New research reveals Snowball Earth wasn’t fully frozen, with ice-free tropical oases possibly sheltering early complex life during extreme glaciation.

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What turned Earth into a giant snowball 700 million years ago?
https://phys.org/news/2024-02-earth-giant-snowball-million-years.html

Duration of #Sturtian#SnowballEarth#glaciation linked to exceptionally low mid-ocean ridge outgassing: Adriana Dutkiewicz et al. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G51669.1/633748/Duration-of-Sturtian-Snowball-Earth-glaciation

"Imagine the Earth almost completely frozen over. That's just what happened about 700 million years ago; the planet was blanketed in ice from poles to equator and temperatures plunged."

What turned Earth into a giant snowball 700 million years ago? Scientists now have an answer

Australian geologists have used plate tectonic modeling to determine what most likely caused an extreme ice-age climate in Earth's history, more than 700 million years ago.

Phys.org