"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."

"Pending greenhouse gas regulations cloud the future of coal-burning power plants. But electric utilities are investing to keep large facilities going."

"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."

"MARSHALL, Mich. — As the Obama administration inches closer to a decision on whether to approve construction of the much-debated Keystone XL pipeline, costly cleanup efforts in two communities stricken by oil spills portend the potential hazards of transporting heavy Canadian crude."

"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."

"WASHINGTON — As part of the climate change agenda he unveiled this year, President Obama made a commitment to significantly reduce the federal government’s dependence on fossil fuels. The government, he said in a speech in June at Georgetown University, 'must lead by example.' But just two miles from the White House stands the Capitol Power Plant, the largest single source of carbon emissions in the nation’s capital and a concrete example of the government’s inability to green its own turf."

"MAYFLOWER, Ark. -- In the week after an oil spill strangled the air in Ann Jarrell's neighborhood, tens of thousands of her bees either died or went mad."

"TOKYO — First, a rat gnawed through exposed wiring, setting off a scramble to end yet another blackout of vital cooling systems at the Fukushima Daiichi nuclear plant. Then, hastily built pits for a flood of contaminated water sprang leaks themselves. Now, a new rush of radioactive water has breached a barrier built to stop it, allowing heavily contaminated water to spill daily into the Pacific."

"The Environmental Protection Agency is proposing to let oil companies continue to dump polluted wastewater on the Wind River Reservation in Wyoming. This includes chemicals that companies add to the wells during hydraulic fracturing, an engineering practice that makes wells produce more oil."

"The 2010 Gulf of Mexico oil spill focused attention on the hazards of drilling for oil a mile below the surface of the sea, but recent incidents have brought new attention to dangers that still lurk on the shallow continental shelf, where companies rely on decades-old pipes and platforms to tap aging fields."

"Britain's biggest ever 'fatberg' has been removed from a London sewer. Thames Water say a 'bus-sized lump' of food fat mixed with wet wipes formed in drains under London Road in Kingston upon Thames."

"Chevron Corp agreed to pay $2 million in fines and restitution after pleading no contest to six misdemeanor charges on Monday stemming from the August 6, 2012 explosion and fire at its San Francisco Bay refinery, according to the local district attorney."

"A leak in Exxon Mobil Corp's nearly 70-year-old Pegasus pipeline, which spilled thousands of barrels of crude oil in a small Arkansas town in March, appears to have been caused by an original manufacturing defect, U.S. regulators said on Thursday."

"The non-disclosure agreement prohibiting Chris and Stephanie Hallowich from talking about the 2011 settlement of their high-profile Marcellus Shale damage case in Washington County, or saying anything about gas drilling and fracking, isn't unusual. It happens often in settling such cases. But the insistence that their two minor children, then ages 7 and 10, are also bound by the 'gag order' is."

"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."