US - Water

submitted by Albert Gomez

National Research Council. Progress Toward Restoring the Everglades: The Fifth Biennial Review, 2014. Washington, DC: The National Academies Press, 2014.

The Everglades ecosystem is vast, stretching more than 200 miles from Orlando to Florida Bay, and Everglades National Park is but a part located at the southern end. During the 19th and 20th centuries, the historical Everglades has been reduced to half of its original size, and what remains is not the pristine ecosystem many image it to be, but one that has been highly engineered and otherwise heavily influenced, and is intensely managed by humans. Rather than slowly flowing southward in a broad river of grass, water moves through a maze of canals, levees, pump stations, and hydraulic control structures, and a substantial fraction is diverted from the natural system to meet water supply and flood control needs. The water that remains is polluted by phosphorus and other contaminants originating from agriculture and other human activities. Many components of the natural system are highly degraded and continue to degrade.

Hoover Dam holds back Lake Mead, America’s largest reservoir. The mineral-stained canyon walls are a growth chart in reverse, showing where the lake surface has been. Photo - J. Carl Ganter / Circle of Blue

ecowatch.com - by Brett Walton - July 7, 2014

Lake Mead—America’s largest reservoir, Las Vegas’ main water source and an important indicator for water supplies in the Southwest—will fall this week to its lowest level since 1937 when the manmade lake was first being filled, according to forecasts from the federal Bureau of Reclamation. . .

. . . the steadily draining lake does signal an era of new risks and urgency for an iconic and ebbing watershed that provides up to 40 million people in the U.S. and Mexico with a portion of their drinking water. The rules governing the river are complex, but the risk equation is straightforward: less supply due to a changing climate, plus increasing demands from new development, leads to greater odds of shortages.

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Firefighters have worried that in the event of a fracking chemical spill, without information on the chemicals they would not know the best way to respond. Photo courtesy Kaye Bewley, flickr creative commons

Legislators are pushing for a rule that would require fracking operators to provide information about the chemical contents of fracking fluid in the event of a spill.

northcarolinahealthnews.org - by Gabe Rivin - May 16, 2014

North Carolina - First responders are applauding a recent legislative proposal that would allow state officials to retain confidential information about hydraulic-fracturing chemicals, with the intention that the information reach those first responders quickly during an emergency.

Under restrictions, a Mumford, Tex., farm on the Brazos River could not draw water from it, while cities and power plants could. Credit Ilana Panich-Linsman for The New York Times

nytimes.com - by Michael Wines - March 16, 2014

MUMFORD, Tex. — Across the parched American West, the long drought has set off a series of fierce legal and political battles over who controls an increasingly dear treasure — water.

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