While I have a great deal of respect for Bjorn Lomborg, I would like to see an itemized chart showing how he came to the conclusion that electric vehicles are more polluting than those that rely on internal combustion engines. Beyond the obvious fact that electric cars are only as clean as the means whereby the electricity is generated, Lomborg does bring up the overlooked issue of battery life and the resources needed for their manufacture and disposal. The fact that rechargeable batteries contain highly reactive chemicals that degrade over time has always been my greatest concern with electric cars. Since Lomborg regards hybrids as the “greener” alternative, I would like to see his take on this 9-year old article citing a study by the auto marketing researcher Art Spinella, concluding that the Toyota Prius consumes more resources than a Hummer. Granted, the article I am citing is from by a magazine with a libertarian agenda, I do not think that Spinella's original intention was to discredit this government-subsidized technology. Nonetheless, some of the basis for Spinella’s comparison between the Prius and the Hummer may no longer be valid because during that time, the technology was new and the Prius was unfairly penalized for resource consumption related to its research and development. On the other hand, much like Lomborg in his analysis of electric cars, Spinella takes into account the Prius’s alleged short life (about 100,000 miles) and the disproportionate amount of resources needed for their manufacture and disposal (what the author refers to as “dust to dust” analysis). 

While I have never regarded electric cars as a "greener" solution, I do think that having a few on the road helps create conditions and infrastructure for improvements in EV technology (such as the use of chemical-free super-capacitors instead of batteries). Most importantly, since EV’s are the ultimate flex-fuel vehicles, this technology may help address our concerns about energy security and fracking.