Comments on: Climate change threatens America, IPCC warns http://climateprogress.org/2007/08/29/climate-change-threatens-america-ipcc-warns/ The Latest on Climate Science, Solutions, and Politics Fri, 04 Jul 2008 20:34:53 +0000 http://wordpress.org/?v=2.1 By: Paul K http://climateprogress.org/2007/08/29/climate-change-threatens-america-ipcc-warns/#comment-5424 Paul K Thu, 30 Aug 2007 00:30:30 +0000 http://climateprogress.org/2007/08/29/climate-change-threatens-america-ipcc-warns/#comment-5424 Joe, It would be interesting to compare lake levels to the known 20th century warming and cooling periods. The linked article seems to discount GW as the cause for lower lake levels, which do rise and fall over time. Please indulge some family history. Way back in 1919, my great grandparents built a cottage on the Michigan shore near Benton Harbor. The lake was then at or near its historic low. There was almost a quarter mile of beach between the tree line and the water with a sandbar large enough for touch football games 15 - 20 yards offshore. By the time of my childhood in the Fifties, about 1/4th of the beach was gone and the sandbar was covered by six inches of water. By the late seventies the beach had pretty much disappeared. I don't know when the lake level peaked, but is has been falling for a few years. Joe,
It would be interesting to compare lake levels to the known 20th century warming and cooling periods. The linked article seems to discount GW as the cause for lower lake levels, which do rise and fall over time. Please indulge some family history. Way back in 1919, my great grandparents built a cottage on the Michigan shore near Benton Harbor. The lake was then at or near its historic low. There was almost a quarter mile of beach between the tree line and the water with a sandbar large enough for touch football games 15 - 20 yards offshore. By the time of my childhood in the Fifties, about 1/4th of the beach was gone and the sandbar was covered by six inches of water. By the late seventies the beach had pretty much disappeared. I don’t know when the lake level peaked, but is has been falling for a few years.

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