The carbon dioxide loop

The oceans are great at absorbing carbon dioxide (CO2) from the air, but when their deep waters are brought to the surface, the oceans themselves can be a source of this prevalent greenhouse gas.Bacterioplankton (dots) surrounded by a nanoflagellate (white), which preys on the bacteria 
[Credit: Rachel Parsons]Wind patterns together with Earth's rotation drive deep ocean water -- and the CO2 it sequesters -- upward, replacing...
[[ This is a content summary only. Visit my website for full l