Comparison of Carbon Emissions of Gasoline Vehicles and Electric Vehicles

Electric vehicles are promoted by many countries as alternative products of gasoline vehicles in recent years since they are widely regarded as low-emission green vehicles by the society. However, after a series of investigation and research, it is found that the carbon emissions of electric vehicles in the whole process are not as small as what the public think, carbon emissions of electric vehicles depend on a variety of factors like the manufacturing regions, energy source, etc. By analyzing the sources of carbon emissions during the production and use of various types of vehicles, combined with relevant research data, this paper compares the carbon emission levels of gasoline vehicles and electric vehicles at various stages as well as the emissions in different countries and regions. Through comparative analysis authors draw relevant conclusions on greenhouse gas emissions level of the two types of vehicles. Overall, electric vehicles do have lower emissions than gasoline vehicles in life-cycle process. Electric vehicles that are used in developed regions have lower carbon emissions than those used in developing regions. Another conclusion is that the carbon emissions are lower in places with cleaner electricity sources, this article has compared the carbon emissions of electric vehicles in different states of the United States, the discussion shows that states with a higher proportion of renewable energy have lower carbon emissions in general.