"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."

"New research finds that copper in amounts readily found in our drinking water, the foods we eat and the vitamin supplements we take likely plays a key role in initiating and fueling the abnormal protein build-up and brain inflammation that are hallmarks of Alzheimer's disease."

"A study on the fetuses of pregnant rhesus macaque monkeys has shown that exposure to the chemical bisphenol A, or BPA, led to changes in their lungs that increased the potential for developing asthma."

"WASHINGTON, DC -- To protect bees and other pollinators, the U.S. Environmental Protection Agency has developed new pesticide labels that prohibit use of some neonicotinoid pesticide products where bees are present. Environmentalists want the agency to take these pesticides off the market."

"The University of California at Berkeley cut laboratory financing this week for a professor who has complained for years about corporate-led retaliation for his association of health risks with a widely used herbicide."  The herbicide is atrazine.

"Authorities in south Georgia say at least three people have been injured in a chemical explosion that rocked an industrial complex."

"UNITED NATIONS — After months of negotiations, the United Nations announced Wednesday that U.N. experts will depart imminently for Syria to investigate alleged chemical weapons use."

"Well-meaning home gardeners who buy plants to attract pollinators might be harming honeybees, according to a study that an environmental group released Wednesday."

"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."

"At a beef industry conference in Denver last week, the animal health auditor for meat producer JBS USA presented a video showing short clips of cows struggling to walk and displaying other signs of distress. The animals appeared to step gingerly, as if on hot metal, and showed signs of lameness, according to four people who saw the video."

"A 27-year-old U.S. program intended to warn the public of the presence of hazardous chemicals is flawed in many states due to scant oversight and lax reporting by plant owners, a Reuters examination finds."

"Kerri was 4 when she started having trouble walking. Justin was 5 when he got a nosebleed that would not stop. Danielle was 7 when her legs began to ache."

"The beepocalypse is on the cover of TIME, but it looks like managed honeybees will still pull through. Wild bees—and wild species in general—won't be so lucky in a human-dominated planet."

"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."

"NEW YORK -- All of the notices U.S. regulators received to vouch for the safety of common food additives between 1997 and 2012 were submitted by people who had a vested interest in the outcome of those assessments, according to a study published in JAMA Internal Medicine on Wednesday."