There are no more swimmable lakes in southwestern Minnesota, a 1,783-square-mile stretch that spans six counties. Dangerous levels of phosphorous, nitrogen, and bacteria like E. Coli will take decades to clean up, says the Minnesota Pollution Control Agency. The problem extends along our southern border, where rampant pollution threatens the safety of drinking water.
Legislators hem and haw about potential causes. The science isn't so mealy-mouthed: The bulk of the pollution is from factory farms and fertilizer runoff. Read more