EPA Administrator Scott Pruitt has said the agency's purview should not include climate change, but a look at its history under both Republican and Democratic presidents says otherwise.
Think you couldn't possibly do without your car? There are more options than you might think.
Australia's plan to bring fuel efficiency standards up to par with the US and Europe could see us say goodbye to regular unleaded, and hello to a useful way of cutting our rising greenhouse emissions.
Australia's lax attitudes to vehicle emissions has been overlooked in Ford's exit.
Faced with stringent fuel economy standards but cheap gas, automakers may seek to delay CAFE rules. What's the best way to reevaluate these emissions-cutting rules?
Self-driving cars are way more energy efficient than your average vehicle – but that doesn't necessarily mean they'll reduce carbon emissions.
With cheaper gas, consumers are buying fewer fuel-efficient vehicles – a step backwards on climate, energy security and upkeep of our highway and bridges.
When cold weather hits, heating costs can be a matter of life and death. So why are community groups the front line and not government?