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Humans have caused both landscape change and climate change, leading to ecological calamities around the world in freshwater and coastal waters. Harmful algal blooms (HABs), more common and wicked because of excessive and nonstop fertilization and runoff from farms and urban areas, are accelerated by climatic increases of water temperatures and stormwater runoff from agriculture fields and cities. The world has lost an estimated 87% of its wetlands, with half of that loss occurring in the twentieth century alone, yet wetlands have been demonstrated to be effective nutrient sinks in hundreds if not thousands of case studies, some for long periods (>20 years) and some at very large scale of 20,000 ha or more.

A new nutrient recycling approach applicable to agricultural landscapes around the world called “wetlaculture” (wetlands + agriculture) could help solve downstream nutrient pollution problems while …