The January 2014 spill contaminated drinking water for 300,000 residents for days.
In a case with potentially far-reaching consequences, a federal appeals court has again found that the U.S. Chemical Safety Board has the authority to investigate offshore oil spills.
Global energy emissions stayed stable last year even though the economy grew, according to data released Friday that could boost chances for a landmark climate accord later this year.
Gov. Earl Ray Tomblin signed bills Thursday that scale back the state's prevailing wage and cut safety and environmental rules for coal mining.
A Wyoming company is preparing to resume oil shipments through a pipeline that broke and spewed 30,000 gallons of crude into Montana's Yellowstone River, even as most of the spilled oil remains unrecovered.
About 60 landowners and activists rallied at the state Capitol in Lincoln as pipeline developer TransCanada Corp. defended its use of eminent domain to gain access to property owned by holdouts.
A Los Angeles County battery recycler at the center of a long public fight over its toxic output has agreed to shutter its plant.
The proposal, posted online Wednesday by Transport Canada, would require the cars to have outer "jackets," a layer of thermal protection, and thicker steel walls.
The intent is to improve consumer safety with updated laws and regulations of toxic chemicals, and on face value, the bill seems to accomplish just that. But not everyone agrees on whether the provisions go far enough.
The state said monitoring wells near Duke's dumps at Sutton showed readings exceeding state groundwater standards or boron, thallium, selenium, iron, manganese and other chemicals.
About a 4-mile to 8-mile stretch of the ship channel remained closed as crews worked to deal with the gasoline additive that spilled after two 600-foot ships collided on Monday in foggy conditions.
The letter, signed by 128 groups, called on the Agriculture Department and the Environmental Protection Agency to take immediate action to regulate the use of neonicotinoids.
The wastewater, called brine, contains high levels of salt and toxic organic compounds that could impact local water supplies if not properly contained.
City officials said Monday they want to review whether current permits allow Royal Dutch Shell PLC to lease port property along the Seattle waterfront for its Arctic oil drilling fleet.
A New Jersey legislative committee advanced a resolution on Monday calling for the rejection of a deal Gov. Chris Christie's administration announced last week to settle a decade-old lawsuit against Exxon Mobil for $225 million, a fraction of what the state previously sought for environmental damage from the oil company.
Oil drilling economics and public health concerns tussled in tug-of-war Monday as the petroleum industry, advocacy groups and homeowners told state regulators what they think should be the minimum distance between homes, and oil and gas wells in Wyoming and why.
New regulations targeting endocrine disrupters — which are found in thousands of products — are likely to have sweeping impacts across the chemicals industry.
Railroad company officials say a fiery oil train derailment in western Illinois involved tank cars that already meet a higher safety standard than what federal law requires.
With tanks of oil piling up in the U.S., the drumbeat for lifting the crude export ban has been getting louder — but many in Congress are still reluctant to let the ban go. Here are some of the arguments in support of keeping the ban and how they stack up against the facts.
Researchers called the results "encouraging" and noted the study showed international agreements and chemical bans can gradually "reduce the prevalence of toxic chemicals."
State officials say it is the largest environmental settlement in state history — though it has been criticized by Democratic lawmakers who say it is for a mere fraction of the nearly $9 billion initially sought.
A nearby plant turns bauxite ore shipped from Jamaica into alumina, which supplies the company's aluminum smelter in Missouri.
In an op-ed published Tuesday in the Lexington Herald-Leader, Majority Leader Mitch McConnell of Kentucky says states should reject Obama's proposed requirements for power plants to reduce carbon dioxide, the chief greenhouse gas.
High up in the high Andes mountains of Argentina, researchers have identified the first evidence of a population uniquely adapted to tolerate the toxic chemical arsenic.
Years of confusion, lax oversight and miscommunication among state and federal regulators are to blame for injecting protected groundwater with the waste, says a separate report California's Environmental Protection Agency.