Ramsey County, one of seven counties tracked for particulate matter, got an F for the first time since the Lung Association began compiling the annual report.
Updated: April 25, 2012, - 11:56 AM
State pollution regulators say penalties are having an effect.
Updated: April 20, 2012, - 10:47 PM
Number could determine whether federal license will be given. The issue has stalled the project near Red Wing.
Updated: April 18, 2012, - 09:44 PM
A cellphone tower that AT&T seeks to erect near the wilderness area has raised a significant challenge to a state environmental law.
Updated: April 05, 2012, - 09:44 AM
In a spring ritual as old as life itself, Steve Ellis' bees return to their hives day after day loaded with pollen from the dandelions and flowering trees that are in full bloom across central Minnesota.
Updated: March 31, 2012, - 11:06 PM
As efforts to fight zebra mussels and other invasives heat up, some argue that a Minnesota birthright is at stake: Unfettered access to lakes and rivers.
Updated: March 25, 2012, - 02:33 AM
Herbicide-resistant crops can withstand Roundup, which kills monarchs' preferred nesting plant.
Updated: March 16, 2012, - 09:37 PM
Hydro-fracking spawns a new Minnesota industry - and fears about its effects. Nearly 50 mining operations have opened nearby in the past few years, producing enough sand to send 54,000 semitrailer trucks rumbling down Winona's main street in a year.
Updated: March 11, 2012, - 11:16 PM
Legislation would include Minnesota waters in federal plan to stop carp spread.
Updated: March 06, 2012, - 09:29 PM