Pollution

"Across the country, companies keep extra natural gas in aging underground wells that weren't originally designed for such storage."

"NAOMA, W.Va. — Junior Walk stands with one foot resting on the stoop of a log house. A slab of wood mounted above the door reads in hand-painted letters: Coal River Mountain Watch."

"The Dakota Access pipeline system leaked more than 100 gallons (380 liters) of oil in two separate incidents in North Dakota in March as crews prepared the pipeline for operation."

"The activists also called on federal regulators to 'initiate an immediate review of horizontal drilling plans and procedures on all open pipeline dockets.'"

"More than 100 local and environmental groups are demanding federal regulators immediately halt all construction on Energy Transfer Partners' Rover gas pipeline after a series of environmental violations, including a massive spill that fouled sensitive wetlands in Ohio with several million gallons of construction mud.

"Flow lines — the small, low-pressure pipes blamed for a fatal home explosion in Colorado last month — have long been a weak point at oil and gas well sites. They've been cited as the problem in more than 7,000 spills, leaks and other mishaps since the beginning of 2009, according to an E&E News analysis of state agencies' records."

"Pollution from diesel trucks, buses and cars globally is more than 50 percent higher than levels shown in government lab tests, a new study says."

"Northern Michigan's industrial past is returning to haunt the Petoskey waterfront, where environmental and public health officials are going door-to-door to test for poison vapors inside residences built on a Superfund site."

"The Dakota Access pipeline leaked 84 gallons of oil in South Dakota early last month, which an American Indian tribe says bolsters its argument that the pipeline jeopardizes its water supply and deserves further environmental review."

"With livestock-contamination of drinking water a growing concern in Wisconsin, the Department of Natural Resources has quietly started efforts to provide temporary water supplies to people with tainted wells."

"The Federal Energy Regulatory Commission has curtailed work on a natural-gas pipeline in Ohio after the owner, Energy Transfer Partners, reported 18 leaks and spilled more than 2 million gallons of drilling materials."