Sunday , 11 December 2016

GREAT LAKES BASIN BOUNCING BACK FROM RECORD-LOW WATER LEVELS

Water levels in Lake Michigan have been replenishing at an unprecedented rate since receding by 4 feet in the late 1990s and hitting a record low two years ago, according to government agencies. Lake Michigan has risen more than 3 feet since January 2013, experts said. The resurging waters mean relief for commercial shipping and recreational activities, but they also have contributed to erosion that poses a threat to beaches and shoreline properties, the Chicago Tribune reported on Friday. Some of the Great Lakes, the world’s largest source of freshwater, have experienced below-average levels for years. The unusually long period of time that Lake Michigan waters remained at a low level created concern. “It just stayed below average for 15 years, which was the longest persistent below-average (stretch) on record,” said Drew Gronewold, hydrologist for the National Oceanic and Atmospheric Administration. But for the first time in nearly two decades, the water levels of the Great Lakes exceeded their historical averages in late 2014. http://host.madison.com/news/state-and-regional/great-lakes-basin-bouncing-back-from-record-low-water-levels/article_0b41dbb3-a7ef-5d8c-8b7b-288aab0a20fb.html#.VaCB8nvYv74.mailto

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