This post is by Greg Archer, UK director at Transport and Environment
Measures to reduce CO2 emissions from cars have so far failed. Minimal improvements in the efficiency of new cars have merely offset the steady rise in vehicle mileage, causing UK car emissions to effectively flatline over the past 30 years. There are several causes: the failure to invest in alternatives to car use; the falling cost and increased level of car ownership; and the focus of the car industry on maximising profits, selling ever bigger and more powerful cars, whilst limiting the choice and availability of low and zero emissions electric models. There are no silver bullets but there are positive signs that a revolution is underway that will drive a sharp reduction in emissions.