Take this bark and call me in the morning

A factory in Two Harbors, Minn., is using a process developed at the University of Minnesota’s Natural Resources Research Institute in Duluth to extract chemicals from birch bark. The bark contains three compounds from which researchers aim to derive nutritional supplements, cosmetics, and pharmaceuticals: Betulin, lupeol, and betulinic acid. All contain anti-inflammatory properties which have … Read more Take this bark and call me in the morning

Infested lake waters, trash burners and lawn-mowing goats

Each week, the Freshwater Society publishes a digest of some of the best regional, national and international articles on water and the environment. Scan the articles here, then follow the links to the original sources. Lake Winnibigoshish now designated “infested water” Anglers and boaters must adhere to stricter rules on Lake Winnibigoshish near Deer River … Read more Infested lake waters, trash burners and lawn-mowing goats

Sensors speed water quality research

Each week, the Freshwater Society publishes a digest of some of the best regional, national and international articles on water and the environment. Scan the articles here, then follow the links to the original sources. UM studies remote sensors for water quality Measuring water quality in lakes and streams traditionally starts with a time-consuming trip … Read more Sensors speed water quality research

UM StreamLab mimics natural processes

(This article was published in the March, 2009, Facets of Freshwater, the Freshwater Society’s newsletter. Read it here, or go to www.freshwater.org.) This summer, there are going to be some big floods in Minneapolis. The floods won’t inundate Hennepin Avenue, they won’t seep into the IDS Crystal Court or the Metrodome and they won’t displace … Read more UM StreamLab mimics natural processes