Clouds as Reflectors
Convection often forms sprawling "cloud decks" like this one
covering a huge portion of the Atlantic Ocean. Clouds,
especially when viewed from above, appear bright
and white. They are white because they are reflecting all
of the colors in visible light back to our eyes. The
clouds do more than just reflect colors, however. The bright
cloud tops reflect a lot of sunlight back into space,
preventing the ocean from soaking up very much energy. These
convective cloud decks greatly affect the global climate
by changing the amount of sunlight that reaches the earth.