000			01678 a2200289 4500
008			041203s xx 000 0 eng
022			_a1522-3264;
050			_aAC1.S5
082			_a050
100			_aLees, David,
245		0	_aHigh and Dry. _cDavid Lees.
260			_bCanadian Geographic, _c2004.
440			_aSIRS Enduring Issues 2005. _nArticle 12, _pScience, _x1522-3264;
500			_aArticles Contained in SIRS Enduring Issues 2005.
500			_aOriginally Published: High and Dry, May/June 2004; pp. 94+.
520			_a"Contrary to popular belief, the largest lake in the world is not Lake Superior but mighty Lake Michigan-Huron, which is a single hydrological unit linked at the Straits of Mackinac. Of all the Great Lakes, Michigan-Huron is the least regulated; water levels in lakes Superior and Ontario are controlled by locks and dams, and even Lake Erie levels are influenced by retention structures on the Niagara River. So Michigan-Huron, the default lake for the system, experiences some of the most extreme fluctuations in water levels and is, accordingly, the most telling barometer of the state of the water supply in the entire system." (CANADIAN GEOGRAPHIC) This article discusses the concern voiced by many over lower water levels in the Great Lakes.
599			_aRecords created from non-MARC resource.
650			_aDroughts
651			_aGreat Lakes
650			_aHydrologic cycle
650			_aWater conservation
650			_aWater levels
650			_aWater-supply
650			_aWatershed management
710			_aProQuest Information and Learning Company _tSIRS Enduring Issues 2005, _pScience. _x1522-3264;
942			_c UKN
999			_c36751 _d36751