A massive algae bloom is choking China’s Yellow Sea and threatening some Olympic events. Many Chinese cities dump untreated sewage into the Sea. Rich in nutrients, the sewage makes the algae grow like crazy. The problem goes beyond the inconvenience to boaters. The growing algae changes the near-shore habitat. And when all this algae dies, the bacteria that decays it sucks oxygen out of the water, killing fish and creating a dead zone.

Tags : pollution, water, sea, olympics, dead zone, China, algae bloom, algae

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