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Release of nutrients from lake-bottom sediments worsens Lake Erie's annual 'dead zone,'


Robotic laboratories on the bottom of Lake Erie have revealed that the muddy sediments there release nearly as much of the nutrient phosphorus into the surrounding waters as enters the lake s central basin each year from rivers and their tributaries.
Excessive phosphorus, largely from agricultural sources, contributes to the annual summer cyanobacteria bloom that plagues Lake Erie s western basin and the central basin s annual dead zone, an oxygen-starved region that blankets several thousand square miles of lake bottom and that reduces habitat for fish and other organisms.
The release of phosphorus from Lake Erie sediments during periods of low oxygen a phenomenon known as self-fertilization or internal loading has been acknowledged since the 1970s. But the new University of Michigan-led study marks the first time the process has been monitored step by step for an entire season using lake-bottom sensors. ....

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Barnstable High School opens $1.2M environmental science and technology Lab


Bronwen Howells Walsh
As head of Barnstable High School s new $1.2 million Environmental Science and Technology Lab, Michael Smith cannot wait to get to work.
Now entering his 18th year of teaching at BHS, Smith teaching environmental science and biology in the school s student-driven Environmental Science and Technology Pathway.
He also is collaborating with some of the region s most accomplished scientists – among them, Laurel Schaider of The Silent Spring Institute; Amy Costa of the Center for Coastal Studies; and Zenas Crocker, Barnstable Clean Water Coalition – to start a high school intership program. 
The new lab opened to BHS students Oct. 26. A partnership between Town Manager Mark Ells, a water engineer who worked with Brian Howe, professor of marine science and technology at the University of Massachusetts Dartmouth, and Supt. Meg Mayo-Brown, the lab will help grow partnerships and collaborations with people who actually work in the in ....

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