It said even self-driving electric cars would produce pollution and congest the roads. The key was to reduce the use of cars by getting people on to less-polluting forms of transport, said Prof ...

After yearlong tests of six cars and trucks fueled by natural gas, the company reports a dramatic decrease in air pollution. Because natural gas burns cleanly, the vehicles emitted almost no ...

2007 in Miami, Florida. Florida Governor Charlie Crist plans on adopting California's tough car-pollution standards for reducing greenhouse gases under executive orders he plans to sign Friday in ...