Cars, Carbon Dioxide Emissions | featured news

The Obama administration finalized new environmental rules for automobiles Thursday that officials say will spur new vehicle technologies and reduce oil consumption. The rules require that all new cars average about 35.5 miles per gallon by ...

President Barack Obama is asking consumers to put their money -- up to $1,300 per new vehicle by 2016 -- behind his plan for higher efficiency standards for cars and trucks and tougher rules on their greenhouse gas emissions.

Urban visionaries in London and Seoul, two of the world's busiest capital cities, foresee buses gliding through their streets with speed, ease and efficiency - without emitting the exhaust fumes that scientists say are contributing to global warming. Under Mayor Boris Johnson's vision, London's iconic red double-decker Routemaster buses would be back on the streets - but powered by electricity, not gasoline.