Why We Need Electric Cars

Electric cars promise to bring about a transportation transformation whose time has come.

electric cars - CO2 reductsion US map
The map shows the potential state-by-state C02 reductions the country could achieve if electric and plug-in hybrids replaced gas engines. Even if electric cars were charged by existing utility grids (which mostly use fossil fuels), carbon dioxide emissions would be significantly lower. The national average reduction would be 42 percent. 
Peter Lilienthal/NREL