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 ...
BGR6y
Climate change is actually changing the color of the ocean
The consequences of doing nothing are many, and a new study by MIT suggests that the ocean will actually change color as a result ... appearing even more blue by the year 2100.