"Aboriginal leaders welcomed an agreement announced Monday between the federal and Ontario governments to clean up 16 abandoned Cold War radar sites in northern Ontario at an estimated cost of more than $100 million."

The Army has finally agreed to an enforceable timetable for cleaning up Superfund sites at Fort Meade in Maryland.

The Cuyahoga River, which became a symbol of pollution when it caught fire 40 years ago, has come back to life.

"At least 10,000 more properties in residential neighborhoods of Evansville will be tested for lead and arsenic contamination in the soil of their yards" from foundries going back to the 1880s.

"The federal government plans to spend up to $3 million a year to demolish and rebuild uranium-contaminated structures across the Navajo Nation, where Cold War-era mining of the radioactive substance left a legacy of disease and death."

Abandoned gas stations dot some Florida highways. Economic conditions bear part of the blame. But operators' inability to pay for replacement of old, leaky tanks ironically may be causing more old tanks to be left in the ground.

Persistent organic pollutants from thousands of miles away accumulate to unusual levels in the bodies of the indigenous peoples of the Arctic.