Nutrient pollution: Voluntary steps are failing to shrink algae blooms and dead zones
By Donald Scavia | The Conversation July 31, 2017 Summer is the season for harmful algae blooms in many U.S. lakes and bays. They occur when water bodies become overloaded with nitrogen and phosphorus from farms, water treatment plants and other sources. Warm water and lots of nutrients promote rapid growth of algae that can be toxic [...]