Pub. date: 2008 | Online Pub. Date: April 25, 2008 | DOI: 10.4135/9781412963893 | Print ISBN: 9781412958783 | Online ISBN: 9781412963893| Publisher:SAGE Publications, Inc.About this encyclopedia
Velma I. Grover
A CARBON SINK is defined as a pool or reservoir that absorbs carbon released from another part of the carbon cycle (the net exchange between the biosphere and the atmosphere). If the net exchange is toward the atmosphere, the biosphere is the source, and the atmosphere is the sink. Carbon sources usually release more carbon than they absorb, while sinks soak up more carbon than they emit. Another definition of carbon sink is: any natural or anthropogenic system that absorbs CO 2 from the atmosphere and stores it. Trees, plants, and oceans all absorb CO 2 and, therefore, are carbon sinks. The concept of carbon sinks is based on the natural ability of trees, other plants, 2 ...