Carbon dioxide removal

thumb|A forest, six years after reforestation efforts in Panama. thumb|Reforestation in progress: Direct-sowing of seed in a burned area (after a wildfire) in the [[Idaho Panhandle National Forest, United States.]] Reforestation is the practice of restoring previously existing forests and woodlands that have been destroyed or damaged. The prior forest destruction might have happened through deforestation, clearcutting or wildfires. Three important purposes of reforestation programs are for harvesting of wood, for climate change mitigation, and for ecosystem and habitat restoration purposes. On

thumb|upright=1.25|An afforestation project in Rand Wood, Lincolnshire, [[England (this patch was open ground before)]]

alt=A large pile of biochar|thumb|A pile of biochar thumb|alt=Biochar mixture ready for soil application|Biochar mixture ready for soil application Biochar is a form of charcoal, sometimes modified, that is intended for organic use, as in soil. It is the lightweight black remnants remaining after the pyrolysis of biomass, consisting of carbon and ashes. Despite its name, biochar is sterile immediately after production and only gains biological life following assisted or incidental exposure to biota. Biochar is defined by the International Biochar Initiative as the "solid material obtained from

natural or artificial process in which something absorbs more carbon from the atmosphere than it releases

process of long-term carbon capture

removal of atmospheric carbon dioxide

removing carbon dioxide from the atmosphere by growing plants, and then putting it permanently underground

ecological concept

method of carbon capture from carbon dioxide in air

geoengineering approaches that use the dissolution of natural or artificially created minerals to remove carbon dioxide from the atmosphere

2019 documentary on potential extinction event

type of climate engineering