Greenhouse gases

Greenhouse gases

1. are

   • The main gases: water vapor (H2o), carbon dioxide (Co2), methane ( CH4) nitrous oxide (N2o), ozone ( N2o) and halocarbons (CFCs, HFCs,etc.)
     • without
       • The sun´s heat would escape and the average temperature of the earth would be 33 degrees colder.
         • Resulted
           • Human activities
             • Most important
               • CO2 is the main contributor to climate change because of the quiantities released

2. are

   • covered
     • International convetion on climate change (the Kyoto Protocol)
       • under
         • carbon dioxide , methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride