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Petrol is a fossil fuel. It gives out enormous amounts of Carbon-dioxide on combustion. Carbon dioxide is a greenhouse gas that is causing global warming and climate change.

Burning petrol in your car with a working catalytic converter will produce water, CO2, and a small fraction of unburnt hydrocarbons. The unburnt hydrocarbons will contribute to photochemical smog, while the CO2 will contribute to global warming. Nitrogen is also emitted, and may change into NO2 or NO due to the heat of the chemical reactions taking place within your car. Also SO2 can be released.

Burning petrol in your car without a working catalytic converter will produce a higher amount of unburnt hydrocarbons, and is significantly worse for the environment.

Petrol is also burnt in heating systems and thermal power stations - with the same problems for pollution and greenhouse effect.

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Elza Olson

Lvl 13
3y ago

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