"Airlines on Monday urged a UN aviation group to back a mandatory global framework to curb airline emissions, saying failure to reach a deal would revive threats of a trade war."

"There was never doubt that the deadly train derailment in Lac-Mégantic caused an environmental disaster, but a report made public this week by Quebec’s ministry of the environment details the extent of the devastation to the soil, river and lake near the disaster zone."

"Federal regulators have reached a tentative deal with Carnival Corp. on a plan to reduce air pollution from nearly a third of its cruise ships, but the accord comes too late to reverse at least a temporary loss of lucrative cruise business for Baltimore."

"The Obama administration's launch of a crude-by-rail safety inspection push dubbed the 'Bakken blitz' could open fault lines between freight operators and oil producers that have turned to the tracks to tote a record-high volume of flammable fuel."

"After 60 years of car-worship, Americans in virtually every state are driving less, according to a new report from the U.S. Public Interest Research Group. Over the past eight years, the number of vehicle miles traveled has steadily decreased, a trend dominated by the so-called millennial generation’s much lower driving rates."

"Trains smack of progress, freedom and adventure. It’s said that railroads revolutionized America. The Association of American Railroads (AAR) touts the safety record of the rails: 'In 2012, North American railroads safely delivered more than 2.47 million carloads of hazardous materials.' But sometimes trains leak, derail or just plain explode."

"Quebec's government last week added rail giant Canadian Pacific Railway Corp. to its list of companies deemed responsible for cleanup costs following last month's deadly oil train derailment."

"SPOKANE, Wash. — The Pacific Northwest’s sense of itself can sometimes seem green to the point of parody: a medium-roast blend of piney peaks and urban cool, populated by residents who look descended from lumberjacks or fishermen."

"MONTREAL -- Tests conducted by an environmental group suggest last month’s Lac-Mégantic, Quebec, train disaster had a devastating impact on water quality and soil in the affected area."

"Crude oil shipped by railroad from North Dakota is drawing fresh scrutiny from regulators concerned that the cargo is adding environmental and safety hazards, something that analysts say could raise costs."

"Hyperloop plans revealed Monday envision a 'fifth mode of transport' in which passengers travel at extreme speeds through tubes to reach their destination. Elon Musk, chief executive of Tesla Motors and SpaceX, says the idea is 'extremely speculative.' But if Elon Musk's hyperloop is ever built, it could revolutionize transportation and energy."

"The Federal Railroad Administration said it is investigating the safety of transporting crude oil by rail, including whether chemicals used in hydraulic fracturing are corroding tank cars."

"The Enbridge pipeline, converted from natural gas, would carry tar sands crude like the Keystone XL but is expected to easily win regulatory approval."

"Climate change pollution from the airline industry is massive. Each plane that takes off emits about the same amount of carbon as 3,500 cars."

"OTTAWA — Faced with uncertainty over its proposed Keystone XL pipeline, which would link Canada’s oil sands with the American Gulf Coast, TransCanada said on Thursday that it would build a pipeline to eastern Canada."