active·EnvironmentIce trap: Salt crust may have accelerated Earth's freezing 700 million years ago06 Sept 2026·1 event·1 sourceFollowHow events unfoldedFrom the beginning to today06/09/2026, 16:03Ice trap: Salt crust may have accelerated Earth's freezing 700 million years ago1 source →1 of 1 eventsStoryline coverage1 source · 1/7