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Q&A

How To Make Earth's Oceans as Brackish as Lyr's

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Allow me to present Lyr, one of a handful of worlds crafted by artist Chris Wayan:

enter image description here

The one detail among a vast many that is important to this question is that its salinity is about 1.5%, roughly half that of Earth. Do you know what that means?

It means that the oceans of Lyr, a habitable planet more than twice the width and seven times the mass of Earth, are brackish.

Lyr serves merely as a model to demonstrate the question more clearly. In an alternate Earth, what must it have to give its oceanic salinity no greater than 1.5%, hence brackish?

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This post was sourced from https://worldbuilding.stackexchange.com/q/156030. It is licensed under CC BY-SA 4.0.

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