Harmful algal bloom

Dolphins are dying at alarmingly high rates in Florida's Indian River Lagoon, a shallow estuary closed off from the Atlantic Ocean by barrier beaches. This place of white sands, seagrasses, and abundant wildlife has become over-saturated by harmful nitrogen pollutants, with a black, mucky bottom,

Nitrogen is the worst pollutant of our oceans. In Florida's Indian River Lagoon, it is making dolphins sick by turning the water into a toxic soup every summer. A population of bottle-nosed dolphins swims their entire lives in Indian River Lagoon. The dolphin population outside the Lagoon shows