The Minnesota Pollution Control Agency (MPCA) Citizens’ Board has approved a new general permit to stop the spread of invasive species from ships’ ballast water discharges. The new permit is MPCA’s response to a state court’s ruling that the agency must take steps to regulate ballast water discharges pursuant to state and federal law. The case was brought by the Minnesota Center for Environmental Advocacy, an innovative and legally sophisticated state environmental group (I may... Read more →