Fertilizer and sewage runoff could be prevented to not cause ocean dead zones
By Hicbd
Fri Nov 27 2020 2:50 pm
"Annual spring rains wash the nutrients used in fertilizers and sewage into the Mississippi. That fresh water, less dense than ocean water, sits on top of the ocean, preventing oxygen from mixing through the water column. Eventually those freshwater nutrients can spur a burst of algal growth, which consumes oxygen as the plants decompose. The resulting patch of low-oxygen waters leads to a condition called hypoxia, where animals in the area suffocate and die."
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