At the 8th Binational Meeting of the Lake Erie Millennium Network, 125 scientists gathered at the University of Windsor in Ontario to hear experts weigh-in on the health of the southernmost, warmest and shallowest of the Great Lakes: Lake Erie. One of the biggest threats the scientists are worried about, and what received the most attention: algal blooms. They are caused by an influx of phosphorous run-off from farms that use fertilizers and manure.