US Plans New Lorry Emission Rules

US regulators have proposed new plans for lorries and vans to cut emissions as part of a drive to cut pollution.
The Environmental Protection Agency wants the industry to cut carbon dioxide emissions by 24% by 2027 through building more efficient models.
It says the new standards would reduce overall fuel costs by $170bn and oil consumption by up to 1.8bn barrels over a vehicle's lifetime.
The EPA estimates it would cut total emissions by about 1bn metric tons.