Toxic Algal Blooms Are Worsening with Climate Change

Researchers use remote sensing technology to carry out a global survey of large freshwater lakes.Every summer, vast blooms of harmful algae erupt in freshwater lakes across the United States. This year, blue-green mats of algae blanketed more than 1,500 square kilometers of Lake Erie’s surface by August; toxic algae forced officials to close New Jersey’s largest lake to recreational activities, and officials in North Carolina and Georgia warned dog owners to keep their pets out of the water after at least four dogs died after swimming in contaminated water.