Environmental Protection: Information on Federal Agencies’ Expenditures and Coordination Related to Harmful Algae, GAO-17-119: Published: Oct 14, 2016. Publicly Released: Oct 14, 2016. “Harmful overgrowths of algae—called algal blooms—are a problem in all 50 states. These blooms can hurt aquatic plants and animals by producing toxins, consuming oxygen, and limiting light penetration in the water.… Continue Reading