"A solar-powered plane called the Solar Impulse 2 is preparing to resume its flight around the world after nine months on the ground for repairs."
"TransCanada Corp. has resumed sending oil through the Keystone Pipeline after a weeklong shutdown prompted by a leak and oil spill in southeastern South Dakota."
"MEXICO CITY — Metropolitan authorities on Wednesday temporarily ordered all cars to remain idle one day a week in response to this notoriously smoggy capital's worst air-quality crisis in over a decade."
"The Federal Trade Commission (FTC) has sued Volkswagen Group of America, accusing the car manufacturer of running deceiving advertisements for so-called “clean diesel” vehicles that in fact were designed to evade federal emissions tests."
"On 13 April, coast guard officials from the US and Canada will train for a cruise ship catastrophe: a mass rescue from a luxury liner on its maiden voyage through the remote and deathly cold waters between the Northwest Passage and the Bering Strait."
"A $2.5-billion transmission line carrying wind power to the U.S. Southeast is coming -- whether state regulators there like it or not."
"U.S. officials moved Thursday to strengthen safety rules for the nation's 300,000-mile network of natural gas transmission pipelines in response to numerous fiery accidents, including a 2010 California explosion that killed eight people and injured more than 50."
"The Panama Canal will next month impose new draft restrictions on ships due to falling water levels at nearby lakes that form part of the waterway, the authority that administers the canal said in a statement on Monday."
"The military is beginning to check whether chemicals from its firefighting foam may have contaminated groundwater at hundreds of sites nationwide, according to the Defense Department."
"The United States has exported its first liquefied natural gas (LNG) cargo from the lower 48 states, after a tanker set sail from Cheniere Energy's Sabine Pass export terminal in Louisiana."