short note on Greenhouse gases

The main greenhouse gas that is responsible for global warming is carbon dioxide(CO2). Others include nitrous-oxide, chlorofluorocarbon (CFC), methane, etc. Greenhouse gases come from various sources.

1. Carbon dioxide (CO2): The major greenhouse gas is Carbon dioxide. The sources of carbon di-oxideincludes:

• Burning of fossil fuels.
• Levels increases as a consequence of deforestation.

2. Methane (CH4): Methane is responsible for about 20% of the greenhouse effect. The sources of methane includes:

1. Rice,
2. Paddies,
3. Burning of wood,
4. Cattle,
5. Wetland,
6. Land fields, etc.

3. Chlorofluorocarbon (CFC): About 15% of greenhouse effect is due to these gases. In case of heat absorbing power it is thousand times more effective than CO2. The sources of chlorofluorocarbonincludes:

1. Air conditioning industry,
2. foam packaging industry, etc.

4. Nitrous oxide: Nitrous oxide is responsible for 5% of the greenhouse gases. Its sources are:

• Coal burning,
• Breakdown of chemical fertilizers,
• Biomass burning, etc.