 Executive Director of Iowa Regents Lakeside Labs says they're seeing an increase in toxic blue-green algae in the Great Lakes. Mary Skopek says after years of drought, the lakes are filled with high levels of nitrogen and phosphorus and contaminated sediment. It's a combination that causes algae to grow when things warm up. She says they need to avoid algae. Being exposed to that can be quite damaging to health. There are more than 70 places where the shorelines have collapsed due to high water, and that has compounded the problem.