geoengineering explained: the benefits and challenges of afforestation

Afforestation is the process of planting trees, or sowing seeds, in a barren land devoid of any trees to create a forest. The term should not be confused with reforestation, which is the process of specifically planting native trees into a forest that has decreasing numbers of trees. The increased number of trees helps to reduce atmospheric carbon dioxide. Accordingly, this form of geoengineering is considered carbon dioxide removal (CDR).

see also:

Question: What is geoengineering?

Albedo Enhancement
Space Reflectors
Stratospheric Aerosols

Afforestation
Ambient Air Capture
Biochar
Bioenergy Capture and Sequestration
Ocean Fertilization
Enhanced Weathering
Ocean Alkalinity Enhancement

sources:

Gupta, A. (2010, October 18). Afforestation: Meaning, Importance and Current Efforts. Retrieved from Bright Hub: http://www.brighthub.com/environment/science-environmental/articles/91133.aspx
Economist. (2012, July 19). Advantages and Disadvantages of Afforestation. Retrieved from Infobarrel: http://www.infobarrel.com/Advantages_and_Disadvantages_of_Afforestation