this is my explanation for why the sky and ocean are blue. ahem. this probably isn't right, but who cares, it makes sense. what color is the sun? it's an orange-yellow color, right? right. and the ground is brown from dirt and green from algae, right? yeah. so what's the median color of the two? it's blue! oh damn, it makes all too much sense. the reflection of the sun against the water on the top, and the counter-reflection of the ground below the water, create a blue appearance. now the sky. what is the earth mostly composed of? water! yay. so, the reflection of the water on the earth's atmosphere is blue as well! sound good? damn right it does. bullshit is your friend!