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An air emission permit is a legal document that describes how a facility must operate to meet state and federal air regulations, and to minimize the impact of air emissions on people and the…
Minnesota state agencies are working together to reduce greenhouse gas emissions that cause climate change.
Lake of the Woods is a big lake with a big problem caused by one of nature’s smallest organisms: algae. Scientists from the MPCA and the Science Museum are working together to understand why.
The Duluth Urban Area Watershed is a focused geographic area designed to recognize the complexity and challenges in an urban center with a water-rich environment. It is defined by a series of small watersheds that are portions of three major watersheds.
State agencies, counties, municipalities, nonprofit organizations, and many others are engaged in protecting Minnesota lakes.
Composting your Halloween jack-o'-lantern is a good way to keep it out of the landfill. So is giving it to a local farmer.
Image Climate change continues to have a destructive impact on Minnesota’s infrastructure, presenting a direct threat to our homes, businesses, roads…
How to prepare recycling for the curb
Spring is the time for awakening gardens from their slumber and cleaning up the yard. It’s also a good time to start thinking about a backyard compost pile. Here’s how to build one that’ll enhance soil health and that your neighbors won’t mind.
Implementing water quality standards come with tangible costs and benefits. Costs such as taxes to residents, regulated parties, and communities help achieve benefits such as increased property values, tourism, and protecting human health.
Our climate has already changed and will continue to change. Minnesotans are feeling impacts of climate change, from higher temperatures, more extreme storms with intense flooding, and changes in our…
Wood waste from trees in the Twin Cities and other urban areas in Minnesota is a growing problem and highlights the need for more efforts to make use of this urban wood.
Profile of Karl Scheuer, a volunteer with the MPCA's Volunteer Water Monitoring Program
Water scientists from the MPCA published four watershed reports in 2025, updating the data we need to keep Minnesota’s waters clean and protected.
Heavy metals are an ill-defined group of inorganic chemical hazards that include lead, chromium, arsenic, and cadmium. They may leach into soil and water from industrial sites, mines or…
Three members of MN GreenCorps worked through the Minneapolis Public Schools' free meal box program to promote waste reduction and recycling.
Significant restoration work by organizations in the area have made the south branch of the Buffalo River a water-quality success story.
Climate adaptation is about developing strategies to help human and natural systems become more resilient to the effects of climate change.
This permit aims to reduce phosphorus discharged by point sources to the Minnesota River Basin. This webpage contains links to the permit and its associated forms and fact sheets.
Minnesota water infrastructure projects in St. Cloud and Pipestone garner EPA’s top awards for innovation, excellence in protecting environment, health.