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Almost every hydrogen atom in existence is older than the sun. Wild guess majority of the oxygen. But due to the photosynthesis cycle the water not captured in
by venomsnake 11y ago
Almost every hydrogen atom in existence is older than the sun. Wild guess majority of the oxygen.
But due to the photosynthesis cycle the water not captured in icecaps is pretty new. Probably couple of 10s of millions years old.
- jessriedel 11y agoYea, it was extremely unclear what the author meant by "age". If the author is defining the age of the water by the time the hydrogen bonded to the oxygen, and the age of the sun by when it started fusing, then I presume you're right. Do you have a source for the claim that the majority of the Earth's liquid water has been through a photosynthesis cycle? Seems plausible but not obvious.
- venomsnake 11y agoIf I say for source - kids documentary I watched 20 years ago will it fly?