GEOENGINEERING
CDR
CARBON DIOXIDE REMOVAL
Carbon Dioxide Removal (CDR) methods refer to a set of techniques that aim to remove CO2 directly from the atmosphere by either (1) increasing natural sinks for carbon or (2) using chemical engineering to remove the CO2, with the intent of reducing the atmospheric CO2concentration. CDR methods involve the ocean, land, and technical systems, including such methods as iron fertilization, large-scale afforestation, and direct capture of CO2 from the atmosphere using engineered chemical means.