"Though the amount of microcystin present in raw Lake Erie water near Toledo’s water-system intake Wednesday was double the amount detected two days earlier, city officials announced they planned to scale back testing for the toxin."

"The Kalamazoo River near Marshall, Mich. today teems with kayakers paddling amid swimming turtles, buzzing dragonflies and fish that leap from the water—with few visible scars of the environmental disaster that struck the riverside community five years ago."

"Air pollution in the Twin Cities contributes to about 2,000 premature deaths every year, and sends 1,000 people to the hospital for asthma, lung and heart disease treatments."

"Assurances from Enbridge Energy that the company's twin oil pipelines under the Straits of Mackinac are in 'excellent' condition and pose 'minimal' risks of a spill are not enough to resolve existing public concerns about the line's potential threat to the Great Lakes and Michigan's economy."

"Wisconsin Governor Scott Walker on Wednesday signed a bill into law that bans the manufacturing and sale of personal care products containing tiny plastic beads that are known to pollute waterways."

Efforts to keep the invasive Asian Carp from migrating upstream caused Congress to shut down Upper St. Anthony Falls Lock & Dam. That will end end 52 years of barge traffic on the northernmost stretch of the Mississippi River.

"Petroleum coke, or 'petcoke,' is still a problem in Chicago despite city regulations, and it could quickly become a problem in other parts of the state if there are no limits or rules on storage of the toxic powdery byproduct of oil refining."

"ST. LOUIS, Mich. — During recent summers birds were found littered around the town, poisoned with a long-banned pesticide."

"Several Minnesota Indian bands are upset about what they say is a lack of consultation over a proposed controversial oil pipeline across northern Minnesota."