A new documentary explores if there’s a link between clusters of ALS and bacteria found in some blue-green algae.

Rresearch is being done by Dartmouth-Hitchcock Medical Center and the University of Vermont in communities on the shores of Lake Champlain and other waterways with abnormally high rates of ALS, better known as Lou Gehrig’s Disease.

Watch this short preview of the documentary “Lake Effect” airing on MLPBS September 12th at 8:00 pm.