Contribution of Passenger Cars and Trucks to CO2, CH4, N2O, CFC and HFC Emissions

Norbert Metz

doi:10.4271/2001-01-3758

2001-11-12

Contribution of Passenger Cars and Trucks to CO2, CH4, N2O, CFC and HFC Emissions 2001-01-3758

Global and regional greenhouse gas emissions of natural and anthropogenic origin are estimated. Biogenic CO₂ emissions are globally 770 billion t/year and anthropo-genic CO₂ emissions in 2000 are 28 billion t/year. Assuming that biogenic emissions are in a equilibrium only manmade CO₂ emissions for comparisons are used. Regarding only the anthropogenic CO₂ emission road transport contributes globally about 10 % and regionally in Europe about 20%. The contribution of road transport on the total CH₄ emission is globally less than 0.2%, regionally about 1% regarding only the anthropogenic CH₄-emission road transport contribute globally less than 0.5% and regionally in Europe about 2%.

The contribution of road transport on the total N₂O emission is globally less than 0.3%, regionally less than 2%, regarding only the anthropogenic N₂O emission road transport contribute globally less than 1% and regionally in Europe about 10 %.

The contribution of road transport on the total CFC-emission is globally less than 0.1%, regionally about 0.2%. All CFC emissions are anthropogenic.

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Contribution of Passenger Cars and Trucks to CO2, CH4, N2O, CFC and HFC Emissions 2001-01-3758

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