geosequestration
 n.— «Its plans are believed to include reducing greenhouse gases from the project by using geosequestration technology. The process involves pumping carbon dioxide underground into reservoirs that have been tested to ensure against gas leakage.» —“Plan For $5b ‘super Plant’ In Coal Fields” by Stephen Dabkowski The Age (Melbourne, Australia) Jan. 25, 2002. (source: Double-Tongued Dictionary)