(1) Carbon sequestration 
The term carbon sequestration means the capture of carbon dioxide through terrestrial, geological, biological, or other means, which prevents the release of carbon dioxide into the atmosphere.

(2) Greenhouse gas 
The term greenhouse gas means carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.

(3) Greenhouse gas intensity 
The term greenhouse gas intensity means the ratio of greenhouse gas emissions to economic output.