So That's Where All The Carbon Is

The top meter of soil holds more than three times the amount of carbon stored in either vegetation or the atmosphere, so if you do little things to change the amount of carbon in the soil it has a huge impact on the atmosphere and thus global warming.

—Evan DeLucia

Hmm, while I knew that the potential to store more carbon in soil was large, I was unaware that there was more carbon in the soil than in the air and plants combined. Geotimes and Wikipedia have some actual numbers for anyone interested.

via Green Car Congress