Eutrophication is a leading cause of impairment ... Rosenberg, R. Spreading dead zones and consequences for marine ecosystems. Science 321, 926-929 (2008). Morris, J. G. Harmful algal blooms ...

But these microbial coatings are creating dead zones in the water below by depleting ... The process is called ‘eutrophication’. By 2000, eutrophication in China had become so severe that ...