Salt may have pushed us further into Snowball Earth 700 million years ago

submitted by throws_lemy to earthscience 15 points | 0 comments https://phys.org/news/2026-03-salt-snowball-earth-million-years.html

Our planet plunged into one of the most dramatic climate states in its long history, approximately 720–635 million years ago. During a period geologists call Snowball Earth, ice sheets crept from the poles all the way to the tropics, covering the oceans and continents in a nearly global freeze.