NASA | Earth Science Week: Keeping Up With Carbon

"Keeping Up With Carbon" is the final episode in the six-part series "Tides of Change", exploring amazing NASA ocean science to celebrate Earth Science Week 2009. To find out more visit climate.nasa.gov Want more? Subscribe to NASA on itunes! phobos.apple.com Or get tweeted by NASA: twitter.com Carbon is all around us. This unique atom is the basic building block of life, and its compounds form solids, liquids, or gases. Carbon helps form the bodies of living organisms; it dissolves in the ocean; mixes in the atmosphere; and can be stored in the crust of the planet. A carbon atom could spend millions of years moving through this complex cycle. The ocean plays the most critical role in regulating Earths carbon balance, and understanding how the carbon cycle is changing is key to understanding Earths changing climate.