What is Fueling Harmful Algal Blooms in the United States?

摘要

Alongside climate change, the increasing amounts of nutrient pollution flowing into our coasts and lakes have meant that Harmful Algal Blooms (HABs) are now a national concern, problematic in all 50 U.S. states~1. In 2017, the American Geophysical Union estimated that 54 percent of the human total phosphorus (TP) flowing into the worlds surface waters comes from domestic human waste, with agriculture contributing 38 percent. In total these two human sources contribute an attention-grabbing 92 percent2; industrial sources adding the remaining eight percent.