chlorofluorocarbons
21Kyoto Protocol — Participation in the Kyoto Protocol, as of December 2010, Green = Countries that have signed and ratified the treaty              (Annex I II countries in dark green) Grey =… …
22Fluorocarbon — Perfluorohexane, a stable fluoroalkane liquid Fluorocarbons, sometimes referred to as perfluorocarbons or PFCs, are organofluorine compounds that contain only carbon and fluorine bonded together in strong carbon–fluorine bonds. Fluoroalkanes that …
23Radical (chemistry) — Free radical redirects here. For other uses, see Free radical (disambiguation). Moses Gomberg (1866 1947), the founder of radical chemistry Radicals (often referred to as free radicals) are atoms, molecules, or ions with unpaired electrons on an… …
24Halocarbon — compounds are chemicals in which one or more carbon atoms are linked by covalent bonds with one or more halogen atoms (fluorine, chlorine, bromine or iodine) resulting in the formation of organofluorine compounds, organochlorine compounds,… …
25Dichlorodifluoromethane — I …
26Atmospheric Chemistry Observational Databases — Over the last two centuries many atmospheric chemical observations have been made from a variety of ground based, airborne, and orbital platforms and deposited in databases. Many of these databases are publicly available. All of the instruments… …
27DuPont Central Research — In 1957, the research organization of the Chemicals Department of E. I. du Pont de Nemours and Company was renamed Central Research Department, beginning the history of the premier scientific organization within DuPont and one of the foremost… …
28Air pollution — from World War II production Smog over …
29Low carbon diet — A low carbon diet refers to making lifestyle choices to reduce the greenhouse gas emissions resulting from energy use. [http://www.time.com/time/health/article/0,8599,1552237,00.html Stacie Stukin, “The Low Carbon Diet,” Time Magazine, Oct. 30,… …
30Sustainability — Achieving sustainability will enable the Earth to continue supporting human life as we know it. Blue Marble NASA composite images: 2001 (left), 2002 (right). See also: Sustainable development Sustainability is the capacity to endure. For humans,… …
