A "carbon sink" is a natural or artificial system that absorbs and stores carbon dioxide from the atmosphere, helping to reduce the levels of this greenhouse gas and slow down climate change. Full definition
Researchers have often looked to terrestrial forests as carbon sinks as well. (sciencedaily.com)
And, it's not as simple as controlling emissions, there is also the question of how we do at making the most of carbon sinks. (tamino.wordpress.com)
New research shows that future plant growth may be restricted by nutrient availability, turning the land carbon sink into a source. (critical-angle.net)