The blue colour of sky has nothing to do with colour of the ocean, it is blue due to...
If Earth had no atmosphere like the Moon there would be no scattering, and the sky would remain black, even in daylight ...
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Catastrophic tipping point in Greenland reached as crystal blue lakes turn brown, belch out carbon dioxide
Record heat and rain turned thousands of Greenland lakes brown in 2022 as they hit a tipping point and began emitting carbon ...