Study Shows that Saltier Ocean Could Prevent Earth From Freezing

Study Shows that Saltier Ocean Could Prevent Earth From Freezing

The study may have answered the mystery of the feeble young sun, which glowed 20% brighter in Archean eras. Even though the Sun burned 20% brighter on early Earth, fossil evidence suggests that our planet had warm, shallow oceans where stromatolites - microbial mats - flourished. New research may have solved the "faint young Sun problem," demonstrating that saltier waters might have prevented Earth from freezing over 3 billion years ago. We all know that the composition of the atmosphere (especially the concentration of greenhouse gases) is essential in regulating the Earth's temperature, but what about the composition of the oceans? To study the influence of salinity, researchers employed an ocean-atmosphere general circulation model. They show that saltier seas result in warmer temperatures, partially because salt lowers the freezing point …
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