Even today, with more than 50% of U.S. power coming from dirty coal plants, plug-in cars reduce emissions of greenhouse gases and most other pollutants compared with other vehicle types.
You don't need to take our word for it -- read the summary of more than 40 studies, analyses, and presentations on this topic.
EVs also allow you to use 100% clean renewable electricity from sources such as the sun or wind, eliminating emissions entirely. Getting more plug-ins on the road will incentivize our society to move more rapidly to replace fossil-fueled power plants with clean and renewable generating methods. EVs get cleaner as the electrical grid gets cleaner. Gas cars only get dirtier as they age.
Read more in Electricity for Cars.