blue-green algae

Harmful algal blooms are a growing concern in the Great Lakes. The toxins they produce can close beaches and even poison drinking water. What’s fueling these blooms? Phosphorus – a key ingredient in agricultural fertilizers. But the way it’s being used comes at a cost.

Harmful algal blooms are a growing concern in the Great Lakes. The toxins they produce can close beaches and even poison drinking water. What’s fueling these blooms? Phosphorus – a key ingredient in agricultural fertilizers. But the way it’s being used comes at a cost.

Lately, that green slime in the lake has been all over the news after it shut down Toledo’s water supply. Journalists, city and government officials...