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The Top Carbon Dioxide Emitters

Below are the top carbon dioxide emitters in 2011. Rank Country CO2 emissions 1. China 9,700,000 2. United States 5,420,000 3. India 1,970,000 4. Russia 1,830,000 5. Japan 1,240,000 6. Germany 810…

carbon dioxide

(Encyclopedia) carbon dioxide, chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure…

carbon cycle

(Encyclopedia) CE5 Carbon cycle carbon cycle, in biology, the exchange of carbon between living organisms and the nonliving environment. Inorganic carbon dioxide in the atmosphere is converted by…

Keeling, Charles David

(Encyclopedia) Keeling, Charles David, 1928–2005, U.S. geochemist, b. Scranton, Pa., Ph.D. Northwestern Univ., 1954. As a postdoctoral fellow at the California Institute of Technology (1953–56), he…

magnesite

(Encyclopedia) magnesitemagnesitemăgˈnəsīt [key], mineral, magnesium carbonate, MgCO3, white, yellow, or gray in color. It originates through the alteration of olivine or of serpentine by waters…

respiration

(Encyclopedia) CE5 Respiratory system respiration, process by which an organism exchanges gases with its environment. The term now refers to the overall process by which oxygen is abstracted from…

sodium bicarbonate

(Encyclopedia) sodium bicarbonate or sodium hydrogen carbonate, chemical compound, NaHCO3, a white crystalline or granular powder, commonly known as bicarbonate of soda or baking soda. It is soluble…

calcination

(Encyclopedia) calcinationcalcinationkălˌsənāˈshən [key], in metallurgy, process of heating solid material to drive off volatile chemically combined components, e.g., carbon dioxide. It is sometimes…

Nyos, Lake

(Encyclopedia) Nyos, LakeNyos, Lakenēōsˈ [key], freshwater lake in a volcanic crater in North-West prov., Cameroon, 15 mi (24 km) ENE of Wum. On Aug. 21, 1986, carbon dioxide gas was released from…