"Experimental solar-powered plane Solar Impulse 2 has landed in Mountain View, Calif., after a three-day flight across the Pacific."

"The experimental plane called Solar Impulse 2 has taken off in Hawaii after a nine-month delay for repairs."

"Volkswagen AG and U.S. officials have reached a framework deal under which the automaker would offer to buy back almost 500,000 diesel cars that used sophisticated software to evade U.S. emission rules, two people briefed on the matter said on Wednesday."

"Michigan is not thrilled with the idea of oil moving through more old underwater lines in its Great Lakes waters."

"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."