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Woman is framed by machinery, holding a small brown disk

NRRI cultivates a renewable energy future

November 2, 2015

Solar and wind energy readily come to mind when talk turns to alternative energy options. But the renewable energy options are much broader... more
Scientist in blue lab coat pours water into tube.

On the front line of the invasion

May 12, 2015

Duluth-Superior Harbor, at the most pristine end of the Great Lakes, is the freshwater port most heavily invaded with non-native species.... more
Close up view of the ends of logs

Testing the timbers

April 1, 2015

Brian Brashaw recalls being under a wooden bridge years ago and seeing the cross beam squish down about four inches when a big gravel truck... more
Blue bird eggs in a nest

Young forests are for the birds

January 7, 2015

It wasn’t what she was looking for, but noting the presence of the golden-winged warbler was a special treat for Alexis Grinde this spring... more

Pumped Hydro Energy Storage Final Report

November 5, 2011

Final Report: Pumped Hydro Energy Storage (PHES) Using Abandoned Mine Pits on the Mesabi Iron Range of Minnesota, November 2011


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