• Teacher talking to students
    Students Breathing Cleaner Air
    A teacher in Rochester, Minnesota, talks to a group of students who are breathing easier now that retrofit technologies are removing particulate matter, nitrogen oxides, hydrocarbons, and carbon monoxide from school bus emissions.
    Photo courtesy of Minnesota Environmental Initiative
  • School Bus Engine
    Emission Reductions on School Buses
    A school bus engine is examined. Minnesota Environmental Initiative retrofitted 279 school buses with either diesel oxidation catalysts or idle reduction technologies.
    Photo courtesy of Minnesota Environmental Initiative
  • Installing a Diesel Oxidation Catalyst
    Diesel Oxidation Catalyst
    A recovery grant allowed the Minnesota Environmental Initiative to retrofit 133 buses with diesel oxidation catalysts, which can reduce particulate matter emissions by up to 25 percent.
    Photo courtesy of Minnesota Environmental Initiative
  • End-Loader Engine Replacement
    End-Loader Engine Replacement
    A repowered end-loader from Aggregate Industries in St. Paul, Minnesota, goes to work with a cleaner and more efficient engine. The Minnesota Environmental Initiative collaborated with 46 partners from the trucking and construction industries.
    Photo courtesy of Minnesota Environmental Initiative
  • retrofitted train in Hopkins, Minnesota
    Idle Reduction = Less Emissions
    A retrofitted train in Hopkins, MN was one of two locomotives retrofitted with idle reduction technologies.
    Photo courtesy of Minnesota Environmental Initiative
  • Twin Cities and Western Railroad
    Twin Cities and Western Railroad
    Gene Maxwell,
    Mayor Hopkins, Minnesota

    Bill Droessler,
    Minnesota Environmental Initiative

    Mark Wegner, President,
    Twin Cities and Western Railroad

    Tony Maietta,
    Environmental Protection Agency
    Photo courtesy of Minnesota Environmental Initiative