Gaseous constituents of the atmosphere, from natural or anthropic sources, that absorb and re-emit infrared radiation. The UNFCCC and Kyoto Protocol count for carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and sulfur hexafluoride (SF6), accompanied by two families of gases – hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) .
Fossil fuels
Fossil fuels
Fuels such as oil, natural gas, and mineral coal – fossilized plant residues – that are buried in the Earth's crust and reached their present state through chemical reactions over long periods of time. They are produced by the continuous decomposition of organic...