"AUGUSTA, Maine — State environmental officials began making their case Monday for a $200 million cleanup of the HoltraChem site in Orrington, arguing that contaminants in five outdated landfills threaten groundwater supplies and the Penobscot River."

"Search warrants served on two Cook Inlet oil facilities last week were based on federal environmental regulators' suspicions that Chevron Corp. had knowingly violated its air pollution permits and made false statements, court filings show."

"More than 40 sites across Iraq are contaminated with high levels or radiation and dioxins, with three decades of war and neglect having left environmental ruin in large parts of the country, an official Iraqi study has found."

"DALLAS -- Crews worked Sunday to protect two sensitive wildlife areas after a crude oil spill shut down parts of a major southeast Texas port, state Land Commissioner Jerry Patterson said."

"An exhaustive report on Portland Harbor contamination -- written by industries and local government agencies that will likely have to pay for much of the cleanup -- tends to 'minimize the risks to human health and the environment' from harbor pollution, federal regulators say."

"Hudson River dredging released almost 25 times more PCBs into the water than expected, General Electric said Thursday in calling for changes in performance standards before the massive Superfund cleanup resumes."

"Federal officials announced two major settlements on Thursday for reducing emissions from 28 glass and cement plants across the country."

"While Windsor builds a $60-million riverfront basin to stop raw sewage overflows, the City of Detroit is dumping billions of gallons of untreated waste into the Detroit River."