"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."

"U.S. authorities have asked the German carmaker Volkswagen to produce electric vehicles in the United States as a way of making up for its rigging of emission tests, the German newspaper Welt am Sonntag reported."

"Volkswagen internal memos and emails suggest that company executives pursued a strategy of delay and obfuscation with United States regulators after being confronted in early 2014 with evidence that VW diesel vehicles were emitting far more pollutants than allowed."

"After a runaway oil train killed 47 people in Lac-Megantic, Quebec, just miles from the Maine border in 2013, Mainers demanded to know more about the state’s railways."