By Clay Masters Even in retirement from a hydrology career, Paul Wotzka keeps tabs on soil layers in southeastern Minnesota’s bluff country. “We have a groundwater sensitive parameter down here,” ...

St. Cloud Mining, which operates an existing mine nearby that was approved in 1987, can now move forward and drill 43 holes ...

Their aim is to speed up meaningful regulation to mitigate high nitrate concentration in southeastern Minnesota, arguing it ...

Clear-cutting can make catastrophic floods 18 times more frequent with effects lasting more than 40 years, according to a new UBC study.