When there is a combination of population increase, wastewater discharge, agricultural fertilization and climate change, the cocktail is detrimental to humans and animals. The harmful cocktail produces harmful algal blooms, and many of these are toxic to humans and wildlife.
Wayne Wurtsbaugh, Professor Emeritus in the Watershed Sciences Department at Utah State University, along with Hans Paerl and Walter Dodds published a global review of conditions that lead to these harmful algal blooms in rivers, lakes, and coastal oceans. Wurtsbaugh says the review will be an excellent resource for students studying pollution and for managers wanting to review recent advances in this field of study. Their review highlights how agricultural, urban and industrial activities have greatly increased nitrogen and phosphorus pollution in freshwater and marine systems. This pollution has degraded water quality and biological resources costing societies billions of dollars in losses to fisheries, the safety of drinking water, increases to greenhouse gas emissions and related social values. The findings have been published in, “Nutrients, eutrophication and harmful algal blooms along the freshwater to marine continuum.”
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Image via West Virginia Department of Environmental Protection