"It's been a long time coming, but work is finally under way to contain pollution from one of Portland harbor's dirtiest sites, the former home of a DDT and rocket-fuel maker that's loaded with the full suite of harbor toxics."

"Pollution from factories and mines is putting the health of 125 million people at risk worldwide and is as dangerous in the developing world as malaria or tuberculosis, according to a report published on Tuesday by two environmental advocacy groups."

"BATON ROUGE -- About 565,000 pounds of oiled material from the Deepwater Horizon spill was brought to the surface by Hurricane Isaac, more than had been collected in eight months before the storm, the state's coastal protection agency said Wednesday. The post-storm figures were announced as members of the state's Coastal Protection and Restoration Authority sharply criticized continuing clean-up efforts by BP and the U.S. Coast Guard and called for more resources to deal with oil that is still below the surface of the gulf, an amount believed to be equal to about 1 million barrels."

"CALGARY -- The ugly scars left on the northern Alberta landscape by the oil sands have prompted calls from around the world for an independent body to gather data on the ecological damage wrought by the energy industry."

"SEATTLE — Gliding through the clear, emerald water of Puget Sound, Diver Laura James stopped when something shiny on the bottom caught her eye. She reached down and picked up a tire-flattened beer can."

Residents of a neighborhood just east of Hialeah have been experiencing cancer and asthma in what they see as unusual amounts. They live in an area with many industries that pollute with toxic dust and chemicals. Those companies often flout enforcement efforts by the county.

"Under fire for dumping toxic pollution into Lake Michigan, owners of the last coal-powered steamship on the Great Lakes promised four years ago they would eliminate its murky discharges in time for the 2012 sailing season."

"A Duke University-led study of coal ash contaminants, published Monday, found high levels of toxic arsenic in Mountain Island Lake."

Efforts to remove 17 miles of dioxin-laced muck contaminating New Jersey's Passaic River seem to have failed.

"While backers hail their benefits, the state struggles to regulate operations that put thousands of animals under the same roof."