What is Carbon Sequestration?

From Wikipedia:

"Carbon sequestration from a fossil-fuel power station
A carbon dioxide sink or CO2 sink is a carbon reservoir that is increasing in size, and is the opposite of a carbon "source". The main natural sinks are the oceans and growing vegetation. The concept has become more widely known because of its role in the Kyoto Protocol."

"Carbon sequestration is the term describing processes that remove carbon from the atmosphere. A variety of means of artificially capturing and storing carbon, as well as of enhancing natural sequestration processes, are being explored. This is intended to help mitigate global warming."

Types of Carbon Sequestration:

1 Natural sinks
1.1 Forests
1.2 Oceans

2 Enhancing natural sequestration
2.1 Forests
2.2 Oceans
2.3 Soils

3 Artificial sequestration
3.1 Carbon capture
3.2 Oceans
3.3 Geological sequestration
3.4 Mineral sequestration
3.4.1 Serpentinite reactions