Laws to cut California car gases

Officials in California have announced tough new regulations to stem the emission of greenhouse gases from cars. Vehicle emissions are seen as a major contributor to global warming. Car manufacturers are threatening to challenge the move in the courts, arguing it could raise the cost of motor vehicles by up to $3,000. California is thought to be the most polluted state in the US and experts say 60% of that pollution comes from motor vehicles. ….

news.bbc.co.uk/1/low/world/americas/3688652.stm