In a major step against climate change, President Joe Biden is proposing a return to aggressive Obama-era vehicle mileag...

A new government report says gas mileage for new vehicles dropped and pollution increased in model year 2019 for the fir...

Nearly two dozen states and several cities are challenging the Trump administration’s rollback of Obama-era mileage stan...

President Donald Trump is expected to relax ambitious Obama-era vehicle mileage standards and raise the ceiling on damag...