http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- As federal agencies respond this month to President Barack Obama's executive order to redouble efforts to clean up the Chesapeake Bay, the challenge in Pennsylvania is to focus on local initiatives aimed at helping agricultural producers and their nonfarming neighbors adopt conservation practices that can improve water quality in bay tributaries, according to an agricultural pollution expert in Penn State's College of Agricultural Sciences. http://www.physorg.com/news172323932.html Space & Earth Wed, 16 Sep 2009 12:46:44 EST news172323932 Cambridge, Md. - An international group of scientists is linking nutrient pollution in the world's coastal seas to an increase in the number of harmful algal blooms reported in recent years. When harmful algal blooms (HAB's) occur, they taint seafood with toxins, cause human respiratory and skin irritations and cause fish or mammal kills in coastal waters. http://www.physorg.com/news150482617.html Space & Earth Tue, 06 Jan 2009 16:43:37 EST news150482617