Lake Superior warming is global trend


The warming of Lake Superior isn’t simply a local or regional phenomenon. A similar warming trend is happening with Lake Baikal in Siberia.

The Duluth News Tribune reports:

The surface water of Lake Baikal in Siberia warmed about 3.8 degrees Fahrenheit from 1977 to 2003 and has continued increasing since then, according to scientists who presented their findings Tuesday at the International Association of Great Lakes Research convention in Duluth.

That warming is nearly as striking as the 4.5 degree surge that University of Minnesota Duluth scientists found from the surface waters of Lake Superior from 1979 to 2006.

In both cases, the water temperature increases are more than double the land temperature increase nearby each lake. And in both cases scientists hypothesize that reduced ice cover each winter on both lakes (caused by shorter, warmer winters) is allowing more sunlight to warm the dark open water rather than be reflected back into space off of white ice.

Right now, Lake Superior is in relative good health according to Dr. Stephanie Guildford from the UMD Large Lakes Observatory. Superior is the healthiest of the Great Lakes in terms of populations of native species. Guildford and Environmental Protection Agency Research Ecologist Mike Sierszen, discussed a scientific conference about lakes currently underway in Duluth on Almanac North.

Also clicking on MN Today


State view: Republicans in St. Paul refuse to lead, unwilling to follow

Republican lawmakers took control of the statehouse in January promising they would deliver what Minnesotans “want.” By the close of this year’s session it was clear they have no idea what that is. Or maybe they just don’t care (Duluth News Tribune).

‘No new taxes’ is a slogan — not reality

Once again, GOP budget would lead to bigger property tax bite (Star Tribune).

Top News

Local renters in financial bind

It’s true. Minnesota is a pretty expensive place to be if you are a renter; and it’s even more challenging if you live in Douglas County (Alexandria Echo Press).

Shooting at Duluth group home ruled justified

The Duluth Police Department announced Wednesday that the St. Louis County Attorney’s Office determined that two officers were authorized to use deadly force to protect themselves and others on March 21 (Duluth News Tribune).

Couple charged with felonies after allegedly threatening canoeists

The couple allegedly threatened a group of canoeists Saturday afternoon while they were traveling down Darrigan’s Creek, a public waterway that connects with White Fish Lake and flows through sections of Hagali Township (Bemidji Pioneer).

Delayed planting could lower yields, push back harvest

A wet spring and muddy fields have slowed planting for farmers in the Red River Valley and beyond. Last weekend’s rainstorms could make matters even worse, as later plantings could lead to lower yields and a delayed harvest (Grand Forks Herald).


The Insight Now debatedoes increasing college enrollment decrease college standards? College made the news today. President Obama’s administration issued new rules governing for-profit colleges and universities. In the story by NPR, the administration reiterated its key goal of widening access to college and also to make for-profit school accountable. To the administration – accountability means gainful employment for graduates.

Our debate has centered on this push for more college access. We’re debating whether that would lower standards. But we’ve also talked about standards. The president has made getting a job a big measure (at least for the for-profits). Is that your measure?

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