Tag Archive: Great Lakes

Sep 16

Of Ice and Mittens, Or, How the Great Lakes Formed

What does a long-gone glacier have to do with Michigan being shaped like a mitten? Pretty much everything. Listen up: Let’s go back about 14,000 years to what’s now the Great Lakes region. Back then, the entire area was covered with a sheet of ice that averaged a half-mile thick, but was up to four …

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Permanent link to this article: http://www.currentcast.org/water-and-climate-change/of-ice-and-mittens-or-how-the-great-lakes-formed/

Sep 13

Deep Lakes, Deep Thoughts

Pondering the depth of the Great Lakes turns up some surprising revelations. Think on this: If you drop a stone into one of the Great Lakes, how far will it travel before it hits the bottom? The longest journey will be in Lake Superior, where the stone will cruise through the cleanest, clearest, and coldest …

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Permanent link to this article: http://www.currentcast.org/water-and-recreation/deep-lakes-deep-thoughts/

Jul 31

Backtracking Birds

Why shorelines are stopover sites:   Each spring and fall, tens of millions of birds migrate through the Great Lakes region. Jeffrey Buler of the University of Delaware says many species prefer to travel at night. In a recent study, he found that if birds were still out over the Great Lakes at sunrise, they …

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Permanent link to this article: http://www.currentcast.org/creature-features/backtracking-birds/

Jun 10

Swimming in Sewage

Sorry to have to break this to you, but sewage overflows are a thing. Plug your nose, then listen up: Here’s the raw deal: Many communities have combined sewer systems (CSS) that can overflow during rainstorms—sending raw sewage into rivers and lakes. Not a pretty picture. “A lot of these older cities like Chicago, and …

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Permanent link to this article: http://www.currentcast.org/stormwater-management/combined-sewer-overflow/

Jun 06

Try Not to Get Carried Away

The Great Lakes can have powerful currents as dangerous as those in the ocean. Tune in for some “current” events: When you think rip current, you might think the Atlantic Ocean. But rip currents are quite common in the Great Lakes as well. National Weather Service meteorologist Jon Hitchcock says there are a couple conditions necessary to …

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Permanent link to this article: http://www.currentcast.org/water-and-recreation/try-not-to-get-carried-away/

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