I was wrong.
I've come to this conclusion after many years of studying environmental issues more deeply and taking note of some important questions we need to ask ourselves as concerned citizens. Mine is an unpopular stance, to be sure. The suggestive power of electric cars is a persuasive force—so persuasive that answering the seemingly simple question "Are electric cars indeed green?" quickly gets complicated.
As with most anything else, the answer depends on whom you ask. Dozens of think tanks and scientific organizations have ventured conclusions about the environmental friendliness of electric vehicles. Most are supportive, but a few are critical. For instance, Richard Pike of the Royal Society of Chemistryprovocatively determined that electric cars, if widely adopted, stood to lower Britain's carbon dioxide emissions by just 2 percent, given the U.K.'s electricity sources. Last year, a U.S. Congressional Budget Office study found that electric car subsidies "will result in little or no reduction in the total gasoline use and greenhouse-gas emissions of the nation's vehicle fleet over the next several years."
Others are more supportive, including the Union of Concerned Scientists. Its 2012 report [PDF] on the issue, titled "State of Charge," notes that charging electric cars yields less CO2 than even the most efficient gasoline vehicles. The report's senior editor, engineer Don Anair, concludes: "We are at a good point to clean up the grid and move to electric vehicles."
