Replacing petroleum fuels with electricity is crucial for curbing climate change because it cuts carbon dioxide emissions from transportation - the largest source of U.S. global warming emissions and a growing source worldwide.
Aircraft are some of the most complex vehicles out there, but the biggest problem for electrifying them is the battery weight.
Most Americans may not appreciate the central role that private railroads play in supporting the U.S. economy and their everyday lives. Recent fears of a railroad strike may have changed that.
Colorado Governor Jared Polis' administration is opposing a federal action triggered by the Denver metro area's ozone levels that would likely mean higher gas prices.
Colorado's average price for gas declined 6 cents per gallon over the last week, data from AAA shows.
Gas prices have continued a steady decline in recent weeks, coming down from record-high gas prices this summer.
Salt Lake City is notorious for its bad air days this time of year, but there is a silver lining to the brown cloud.
Tied to California law by a 2021 decision, Virginia sales of gas-powered vehicles could be done by 2035 unless Republicans get help from Democrats.
California air regulators have set a 2035 deadline for all new passenger cars and trucks sold in the state to be zero-emission vehicles.