<h4>Animal waste lagoons</h4> <h5>In 2018, Hurricane Florence caused at least 32 hog waste lagoon overflows in North Carolina. And a study published in 2000 found that, from 1995 to 1998 in just 10 surveyed states, there were more than 1,000 animal waste spills that killed 13 million fish.</h5><em>Natural Resources Conservation Service Georgia</em>