WASHINGTON — The Obama administration says it’s continuing to address global warming by adopting previously announced standards to make large trucks, buses and other heavy-duty vehicles more fuel efficient.
These vehicles account for more than one-fifth of transportation-related fuel consumption and the emission of greenhouse gases that are blamed for harming the environment.
The Environmental Protection Agency and the Transportation Department say the standards will cut carbon pollution, save vehicle owners billions of dollars in fuel costs and conserve tens of billions of gallons of oil.