Credit-carbon

A credit-carbon is a unit, generally 1 ton of Gaz to greenhouse effect (ges). There exists several different ges, not having all the same value in equivalent CO2.

The Carbon dioxide (CO) is present in the atmosphere in a proportion roughly equal to: 0.0375% in volume, are 375 PMV (left per million in volume). But it increases quickly, by approximately 2 ppmv/an, from the human activities of consumption of the Fossile fuel: coal, Oil, Natural gas.

The Méthane (CH), has 21 times plus the properties of greenhouse effect that CO. This gas is formed when a Composé organics (an animal, a plant) breaks up (by Fermentation or Putréfaction) in the absence of Oxygène. A great quantity of methane present in the atmosphere is of natural origin and thus comes from the Wetlands (marshes, marsh…). But from important quantities of methane also come from the refuse tips, the rice plantations and the cattle.

Oxides of nitrogen (Nox), sulfur dioxide (SO {{ind|2}}), Ozone (O) and chlorofluorocarbons (CFC-11 and CFC-12) are Gaz with greenhouse effect produces by the Industrialization, nonbiotic, like the use of Fossile fuel, the Chemical industry and some domestic apparatuses.

See too

External bonds

Carbon Finances Intel, negotiating out of carbon
the Stock Exchanges of carbon in the world

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