From Minnesota to the Gulf of Mexico, Smart Farming
This is quite a read. Very interesting how this smart farmer in Minnesota knows how his farming practices affect the ecological health of the Gulf of Mexico!
Minnesota Farmer Battles the Gulf 'Dead Zone':
http://www.cnn.com/2010/TECH/innovation/08/30/gulf.dead.zone.minnesota.farm/index.html?hpt=C1
Minnesota Farmer Battles the Gulf 'Dead Zone':
http://www.cnn.com/2010/TECH/innovation/08/30/gulf.dead.zone.minnesota.farm/index.html?hpt=C1

More on the Science of Hypoxia, how nutrients deplete oxygen in the water creating the Dead Zone in the Gulf and the problems with Cyanobacteria (blue green algae) in Grand Lake St. Marys:
http://www.epa.gov/owow_keep/msbasin/hypoxia101.htm