Tuesday, 14 June 2011

4.13



how human activity adds to the greenhouse effect:

• burning fossil fuels (as well as cars, factories) leads to more CO2,NO2,SO2
• farming (cows) cause methane (CH4)
• evaporation of water -> water vapour (clouds)
• refrigeration/ solvents/ propellants
--> CFC chlorine, fluorine, carbon C(CL3)F

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