Controlling the dangerous pollutant could have big consequences for the state's tourism and mining industries.
Updated: July 01, 2012, - 08:45 AM
Scientists are studying the long-term implications because big storms are more common.
Updated: June 28, 2012, - 05:24 AM
A warm sunny day combined with southwest winds carrying wildfire smoke from the west are expected to raise ozone levels to near unhealthy levels on Wednesday in the Twin Cities and Rochester, the state Pollution Control Agency announced.
Updated: June 26, 2012, - 08:54 PM
Court said state officials had good cause to disregard.
Updated: June 25, 2012, - 11:38 PM
Appeals court ruling has scenic implications for BWCA visitors.
Updated: June 18, 2012, - 10:26 PM
The bodies of three wolves were found in an abandoned mine shaft.
Updated: June 15, 2012, - 10:43 PM
New count shows that 178 have passed through from the west to the east, but females are few and far between.
Updated: June 14, 2012, - 12:45 PM
Wisconsin regulators are seeking civil penalties against Minnesota-based mine operators for two large sand spills, a first taste of the kind of environmental risks that accompany the gold rush of frac sand mining underway in both states.
Updated: June 12, 2012, - 12:10 PM
Lawsuit says problems stem from Alexandria sewage plant.
Updated: June 05, 2012, - 10:54 PM