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Panel urges artificial structures for St. Clair River to raise water levels

2013-04-28 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Detroit News: An advisory panel is urging the United States and Canada to consider creating artificial structures in the St. Clair River to raise historically low water levels in Lake Michigan and Lake Huron. The International Joint Commission, which advises both countries on issues involving the Great Lakes and other shared waterways, unveiled its plan Friday after a five-year study by scientists and engineers. Two U.S. and two Canadian commissioners approved all of the report's recommendations, while the...

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Great Lakes water levels reaching record lows

2013-04-25 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Minnesota Public Radio: When the American Century cargo ship glides beneath the Aerial Lift Bridge into Duluth, dock workers will spring to action, ready to load it with coal. But when the 1,000-foot "laker" departs, its holds won't be full. Before workers can fully load the ship, it must first clear a shallow spot in the St. Mary's River after passing through the Soo Locks. The river connects Lake Superior to Lake Huron, which is at record low levels. "They have to make sure they have enough under-keel clearance...

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New Web Site to Track CO2 Levels as Planet Approaches 400 ppm

2013-04-25 04:09:00| Climate Ark Climate Change & Global Warming Newsfeed

Yale Environment 360: As atmospheric concentrations of carbon dioxide approach the milestone of 400 parts per million (ppm), a scientist at the Scripps Institution of Oceanography has launched a Website that will publish daily readings of CO2 concentrations, an online resource he hopes will drive home the urgent threat of rising greenhouse gas emissions. Ralph Keeling, director of the Scripps CO2 program and son of the first scientist to measure CO2 concentrations, hopes the daily tracker will attract more attention than...

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Calculating P, Ca Levels in Meat, Bone Meal for Pig Diets

2013-04-25 02:00:00| ThePigSite - Industry News

US - Following the drought of 2012, the prices of corn and soybean meal for livestock diets have increased significantly. In an effort to reduce their costs, pork producers are looking for alternative sources of calcium (Ca) and phosphorus (P).

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Great Lakes' Low Levels May Get Spring Boost

2013-04-23 23:48:00| Climate Ark Climate Change & Global Warming Newsfeed

LiveScience: Water levels in two of the Great Lakes dipped to record lows in January, but while spring conditions are expected to give these freshwater bodies a seasonal boost, scientists say the ability to forecast long-term trends remains difficult due to climate fluctuations. "Our uncertainty on future water levels -- which is considerable -- is a direct reflection of our uncertainty on future climates," Drew Gronewold, a hydrologist at the National Oceanic and Atmospheric Administration's Great Lakes Environmental...

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