Green beach – Qingdao, China. Photo source: ©© Philip Roeland
Local authorities and residents in the popular tourist destination have been struggling over the summer to remove a large mass of green algae that has washed ashore. As of late June, the algae bloom, or green tide, covered more than 170 square miles (440 square kilometers) of coasts south of Qingdao.
The algae blanketing the city’s beaches belongs to a species of marine plankton known as Enteromorpha prolpifera…