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what is the difference between biomass and fossil fuels?

Biomass is the plant derived organic matter such as agricultural wastes, garbage, wood etc.It is a renewable source of energy.

Fossil fuels are the fuels obtained from the remains of dead plant and animals millions of years ago such as coal, petroleum, natural gas.These are non- renewable sources of energy.

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Biomass is vegetable matter grown in recent history, like trees for example. The argument is that as the plant grows it absorbs carbon dioxide from the atmosphere which it then releases when it burns, so the net effect on CO2level is neutral. Fossil fuel contains carbon from millions of years ago so it adds CO2when burned, the carbon has been retained in it for millions of years so is new to our environment today.

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