Liz Minor, Large Lakes Observatory, talks about Lake Superior's biochemistry, including 1000-year-old carbon and newer carbon that incorporates residuals from weapons testing.
Steve Colman, the director of UMD's Large Lakes Observatory, talks about what large lakes add to our understanding of past climate and ecological conditions.
7 min
About MN Sea Grant: Superior Waves
From the publisher's feed
Minnesota Sea Grant's collection of audio relating to Lake Superior and Minnesota's inland waters.