How much c02 does a hybrid emit?
In the garage, none. On the road, 3.2 kg of CO2 for each kilogram of fuel used - just like all other vehicles. Carbon gets into the car via the fuel tank, and comes out (combined with oxygen) through the exhaust.
Petrol (gasoline) contains 80-90% carbon, the rest is hydrogen with traces of other elements. In the engine the carbon combines with oxygen that enters from the atmosphere via the air filter. Oxygen is much heavier than hydrogen which explains how 1 kg of fuel can generate 3.2 kg of CO2.
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