enteromorpha prolifera

A cluster of algae that covers up to 200 square kilometers is heading toward China's east coast, threatening the region's ecology and tourism.

Local media reported that the incident occurred after piles of strange algae were washed ashore on June 8. Since then, the algae have not shown signs of disappearing because the

China's Yellow Sea is suffering from invasive algae at an extremely fast speed, with nearly 29,000 square kilometers covered by algae, according to Chinese officials on July 4.