"In July, the transportation department proposed that older cars be retrofitted within two years""

"U.S. oil exports are set to surpass a record held since 1957 as traders find ways around a four-decade ban on supplies leaving the country."

Emissions from power plants, refineries and other industrial facilities in the United States increased in 2013, up 20 million metric tons -- or 0.6 percent -- over the previous year, according to a new report from the Environmental Protection Agency released Tuesday."

"Solar energy could be the top source of electricity by 2050, aided by plummeting costs of the equipment to generate it, a report from the International Energy Agency (IEA), the West's energy watchdog, said on Monday."

"Federal regulators approved Monday night plans for a proposed liquefied natural gas, or LNG, export terminal that would be the closest one to the Marcellus Shale region."

"NELIGH, Neb. — Music legends Willie Nelson and Neil Young delivered Saturday on a promise to comfort opponents of the Keystone XL pipeline while also pleasing a few project supporters who ventured into a crowded Nebraska farm field."

"It actually takes quite a lot of fossil fuel power to reach the tiny Spanish island of El Hierro. You have to catch a commercial jet flight, a propeller plane and then a ferry to reach what was once the end of the known world, before Columbus set sail."

"North Dakota’s oil rush brings cash and promise to reservation, along with drug-fueled crime"

"The state Department of Environmental Protection might have used incomplete and inaccurate test information to decide whether chemicals leaking from a Marcellus Shale wastewater impoundment and a drill cuttings pit contaminated a water well and springs in Washington County."

"The solar power business is growing quickly in the U.S. More than 500,000 homeowners and businesses installed solar panels in just the first half of this year, according to a Solar Energy Industries Association report."