What caused the Great Lakes to Form?
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Started by metmike - June 16, 2018, 9:53 p.m.

The Great Lakes are an iconic freshwater system that makes up more than 20 percent of the world’s available surface freshwater. In Michigan, standing anywhere in the state, you are within 85 miles of one of the Great Lakes. Michigan also has 3,288 miles of Great Lakes coastline, the most freshwater shoreline in the world.

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By TimNew - June 17, 2018, 5:47 a.m.
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Glaciers..    Or was that the finger lakes?   or Both?

By mcfarm - June 17, 2018, 9:42 a.m.
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I believe algore when he said....first it was global cooling and floods, then global warming and drought, then global cooling with floods.....and we better do something about it right now

By metmike - June 18, 2018, 10:32 p.m.
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mcfarm takes top honors with his answer!

And scores extra credit with a joke about Al Gore!


Can you imagine what growing conditions were like in the Midwest just 15,000 years ago when glaciers were still retreating out of the the northern parts of the Midwest?

Much too cold to grow crops that we grow today!

 The last 40 years, with the increase in CO2 and increase and global temperatures has featured the best weather/climate for life and growing crops in the last 1,000 years..........since the Medieval Warm Period, which was the last time that it was this warm. 

https://www.awesomemitten.com/how-the-great-lakes-were-formed/


History Of The Formation Of The Great Lakes

    
       15,000 years ago top/left                                           11,000 years ago top/rightHistory Of The Formation Of The Great Lakes

 


"The present day Great Lakes have six quadrillion gallons of water, with only the polar ice caps and Lake Baikal containing more. Lake Superior has the deepest point, at a depth of 1,333 feet. The Great Lakes are also unique in that each lake’s basin is linked, forming a continuous drainage basin, the length of which is about 2,212 miles. This continuous path is important for shipping because it provides direct access to the Atlantic Ocean via the St. Lawrence Seaway."



By metmike - June 18, 2018, 10:58 p.m.
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