Electric cars can save lots of lives from air pollution, but only if they’re powered by renewable energy, not energy from coal or ethanol, a new study find
>" […] The study, published Monday, Dec. 15, 2014, in the Proceedings of the National Academy of Sciences, found that deaths from air pollution could be cut by 70% if electric cars use only renewable-source electricity. But if they use energy from "dirty" sources like coal, they could actually make matters worse and could increase the number of deaths by 80% or more.
“These findings demonstrate the importance of clean electricity, such as from natural gas or renewables, in substantially reducing the negative health impacts of transportation,” said Chris Tessum, co-author on the study and a researcher in the Department of Civil, Environmental, and Geo- Engineering in the University of Minnesota’s College of Science and Engineering.
The University of Minnesota team estimated how concentrations of two important pollutants — particulate matter and ground-level ozone — change as a result of using various options for powering vehicles. Air pollution is the largest environmental health hazard in the U.S., in total killing more than 100,000 people per year. Air pollution increases rates of heart attack, stroke, and respiratory disease. […]"<