"Michigan environmental regulators said Thursday that they reached a long-sought deal with Dow Chemical Co. to clean up to 1,400 residential properties in Midland, home of its corporate headquarters and a plant that polluted the area with dioxin for much of the past century."

The closing of an 83-year-old coal-fired power plant near Chicago, one of the area's top polluters, will have economic consequences.

"One in 10 babies along Minnesota's North Shore are born with unhealthy levels of mercury in their bodies, according to a new report on contamination around Lake Superior, the first to look for the pollutant in the blood of U.S. infants."

"Keeping the invasive Asian carp out of the Great Lakes will involve re-reversing the flow of the Chicago River -- an engineering marvel completed a century ago through a complex network of rivers, canals, and locks, a new study said on Tuesday."

"The Palisades nuclear power plant, which sits on the shores of Lake Michigan, could soon be downgraded by the Nuclear Regulatory Commission to a status making it among the nation's five worst-performing nuclear plants after a year of accidents, unexpected shutdowns and safety violations."

"D&L Energy Inc. is best known for its brine-injection well in the city that is suspected of triggering 11 Mahoning Valley earthquakes this year. But a Vindicator investigation conducted prior to the well shutdown Friday and Saturday’s magnitude-4.0 earthquake revealed the company has a history of at least 120 violations at 32 injection and extraction wells in Ohio and Pennsylvania during the past decade."

"McDONALD, Ohio - Officials said Saturday they believe the latest earthquake activity in northeast Ohio is related to the injection of wastewater into the ground near a fault line, creating enough pressure to cause seismic activity.

The brine wastewater comes from drilling operations that use the so-called fracking process to extract gas from underground shale. But Ohio Department of Natural Resources Director Jim Zehringer said during a news teleconference that fracking is not causing the quakes."