In this chapter:
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.
The term "greenhouse gas" means carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.
The term "greenhouse gas intensity" means the ratio of greenhouse gas emissions to economic output.
(Pub. L. 101–240, title VII, §731, as added Pub. L. 109–58, title XVI, §1611, Aug. 8, 2005, 119 Stat. 1113.)
Pub. L. 101–240, title VII, §739, as added Pub. L. 109–58, title XVI, §1611, Aug. 8, 2005, 119 Stat. 1117, provided that: "Except as otherwise provided in this part [part C (§§731–739) of title VII of Pub. L. 101–240, enacting this chapter], this part takes effect on October 1, 2005."