"Even if foes of the Keystone XL pipeline block it, companies seeking to get Canada’s oil sands to U.S. and world markets could travel the old-fashioned way: by rail."

"Tucked away in northeast Texas, Lake Gilmer was the last major reservoir built in the state, more than a decade ago. Local officials said they had intended to share construction costs and water with a new power plant, but the power company backed out, leaving the City of Gilmer with the bill."

"In the sleek Irvine office building of FirstCarbon Solutions, engineers, biologists, and mapping software specialists work in green jobs. They calculate the impact of housing tracts, design wetlands, and measure air pollution as part of the fast-growing environmental consulting industry."

"NEW YORK -- Just across the East River from midtown Manhattan’s shimmering skyscrapers sits one of the nation’s most polluted neighborhoods, fouled by generations of industrial waste, overflow from the city’s sewage system and an underground oil leak bigger than the Exxon Valdez spill."

"President Obama plans to announce three cabinet-level nominations Monday, including a new administrator for the Environmental Protection Agency, who could be on the hotseat in the looming battle over global warming."

"A federal appeals court on Friday upheld Endangered Species Act protections for the polar bear."

"Entire villages in the eastern part of the state are leasing their land for gas drilling. What's a cash boon to some has others worrying about the future."

"The federal budget sequester took effect on March 1 with a number of likely environmental impacts. With $1.2 trillion in cuts over the next decade and $85 billion through the end of the fiscal year in September, layoffs and difficulties in enforcing the nation's environmental regulations are expected."

"Georgia Power’s Plant Vogtle nuclear expansion project will take about 19 months longer to complete than originally expected and cost about $740 million more than originally thought, the company said Thursday."

"For Jesslyn Brown, sequestration could not come at a worse time of the year."

"Cleanup of radioactive waste at nuclear sites across the country — including one in Washington state where waste tanks may be leaking 1,000 gallons per year — would be delayed under automatic spending cuts set to take effect Friday."

In the World War I era, the U.S. Army thought it was disposing of dangerous toxic chemicals in waste pits located near what is now American University. Then residential houses were built on top of the site. Today, the danger and efforts to clean it up are still a problem.

"CARLSBAD, Calif. — On a calm day, a steady rain just about masks the sound of Pacific Ocean water being drawn into the intake valve from Agua Hedionda Lagoon. Listen hard, and a faint sucking sound emerges from the concrete openings, like a distant straw pulling liquid from a cup."

"CLEVELAND, Ohio -- A federal grand jury returned an indictment against the owner of an oil and gas drilling company on Thursday, charging him with violating the Clean Water Act by dumping more than 20,000 gallons of fracking waste into a river in Youngstown."

"SACRAMENTO -- Nearly five years after Peninsula cities first sued to block California's high-speed train from running along the Caltrain corridor, a judge has dismissed the case in a long-awaited victory for bullet train backers."