Biosequestration

Biosequestration is the capture and storage of the atmospheric greenhouse gas carbon dioxide by an increased volume or quality of photosynthesis (through practices such as growing more trees and genetic engineering respectively), as well as enhanced soil carbon in agriculture. It has been crucial to the initiation, evolution and preservation of life and is a key policy concept in the climate change mitigation debate. It does not generally refer to the sequestering of carbon dioxide in oceans (see carbon sequestration) or rock formations, depleted oil or gas reservoirs (see oil depletion and peak oil), deep saline aquifers, or deep coal seams (see coal mining) (for all see geosequestration) or through the use of industrial chemical carbon dioxide scrubbing.

From http://en.wikipedia.org/