Electric cars: Charge! | The Economist

Electric cars: Charge! | The Economist: "Carmakers are shifting towards electric vehicles. Policymakers must do their part, too

GREENS may not like it, but once people have enough to eat and somewhere tolerable to live, their thoughts turn to buying a car. The number of cars in the rich world will grow only slowly in the years ahead, but car ownership elsewhere is about to go into overdrive. Over the next 40 years the global fleet of passenger cars is expected to quadruple to nearly 3 billion. China, which will soon overtake America as the world’s biggest car market, could have as many cars on its roads in 2050 as are on the planet today; India’s fleet may have multiplied 50-fold. Forecasts of this kind led Carlos Ghosn, boss of the Renault-Nissan alliance, to declare 18 months ago that if the industry did not get on with producing cars with very low or zero emissions, the world would “explode”.

Cars already contribute around 10% of the man-made greenhouse gases that are responsible for climate change. In big cities, especially those in fast-developing countries in Asia and Latin America, gridlocked traffic is responsible for health-threatening levels of local air pollution. To its credit (and under increasing pressure from legislators), the car industry is heeding Mr Ghosn’s call. Biofuels have fallen out of favour because of concerns that those produced in rich countries are not particularly green; but huge efforts are being made to develop cleaner conventional engines and, at the same time, move beyond them to electric, battery-powered vehicles, which produce fewer emissions even when the generation of the electricity needed to charge them is taken into account."