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E-M:/ Trivia Quiz



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Enviro-Mich message from Doug Cornett <drcornet@up.net>
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Sure seems like trivia to me.  Perhaps someone can enlighten us about the
relevance of this trivia to protecting the environment??

Puzzled,

Doug Cornett



At 12:08 PM 2/25/00 -0500, Alex J. Sagady & Associates wrote:
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>Enviro-Mich message from "Alex J. Sagady & Associates" <ajs@sagady.com>
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>
>Renewable vs. non-renewable Great Lakes water.....
>
>
>From: "Bevacqua, Frank" <bevacquaf@washington.ijc.org>
>To: "'Poulsondav@aol.com'" <Poulsondav@aol.com>,
glin-announce@great-lakes.net
>Subject: RE: GLIN==> water volume
>Date: Fri, 25 Feb 2000 11:34:09 -0500
>MIME-Version: 1.0
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>
>Dave,
>
>While the volume of the Great Lakes would cover North America in about
>3.5 feet of water, it should also be emphasized that less than one percent
>of this water is renewable on an annual basis (the rest a legacy from the
>last ice age).
>
>Taking the average outflow from Lake Ontario as a measure, the amount of
>renewable water from the Great Lakes would cover the North American
>continent by 1.03 centimetres, or .40 inches, over the course of a year.
>While this is still an enormous amount of water, it is much less than the
>total volume. The amount of renewable water is probably a better measure of
>what needs to be managed and protected.
>The calculation follows below.
>
>Frank
>
>Renewable portion of GL Water
>
>Average outflow from Lake Ontario (1900-1998): 6950 m+3/second
>
>365.25 days x 24 hrs x 60 mins x 60 secs = 3.1558 x 10+7 secs/year
>
>6950 m+3/second x 3.1558 x 10+7 seconds/year = 2.1933 x 10+11 m+3/year
>
>2.1933 x 10+11 m+3/year / 109 m+3/km+3 = 2.1933 x 10+2 km+3/year
>
>Area of North America = 21,307,000 km+2
>
>2.1933 x 102 km+3/year / 2.1307 x 107 km+2 = 1.0293 x 10-5 km
>
>1.0293 x 10-5 km = 1.03 cm or .40 inches of water
>
>
>----------------------------------------------------------------------------
>Alex J. Sagady & Associates        Email:  ajs@sagady.com
>
>Environmental Enforcement, Permits/Technical Review, Public Policy and
>Communications on Air, Water and Waste Issues
>and Community Environmental Protection
>
>PO Box 39  East Lansing, MI  48826-0039
>(517) 332-6971 (voice); (517) 332-8987 (fax)
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