These gases occur naturally in the environment, but human activity is increasing their concentrations and scientists are particularly concerned about the impact carbon dioxide is having on the greenhouse effect.
You can also find out what is the greenhouse effect.
The major greenhouse gases as listed by the Centre for Climate and Energy Solutions are:
|Greenhouse Gas||Chemical Formula||Anthropogenic Sources||Atmospheric Lifetime1(years)||GWP2 (100 Year Time Horizon)|
|Carbon Dioxide||CO2||Fossil-fuel combustion, Land-use conversion, Cement Production||~1001||1|
|Methane||CH4||Fossil fuels, Rice paddies, Waste dumps||121||25|
|Nitrous Oxide||N2O||Fertilizer, Industrial processes, Combustion||1141||298|
|Tropospheric Ozone||O3||Fossil fuel combustion, Industrial emissions, Chemical solvents||hours-days||N.A.|
|CFC-12||CCL2F2||Liquid coolants, Foams||100||10,900|
|Sulfur Hexaflouride||SF6||Dielectric fluid||3,200||22,800|
You can find in-depth guides and informative videos about climate change on the Met Office website. Their Climate Guide pages are a great place to start if you’re interested in learning more about greenhouse gases and their affects on our planet.Please visit their website for references and more information – you can find this table in its original form at http://www.c2es.org/facts-figures/main-ghgs