Monday, March 24, 2008

Fossil fuels - dominant but dangerous

Carbon cycle process. Click on picture for full size.Fossil fuels are non-renewable energy sources since they need millions of years to form and its reserves are being depleted much faster than new ones are being formed. Fossil fuels category includes oil, coal and natural gas. Fossil fuels when burning release carbon dioxide into the atmosphere and carbon dioxide is very harmful greenhouse gas,

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