An anonymous reader writes "Caused by what researchers say is local industry and agriculture pollution, the green algae (scientific name Enteromorpha prolifera), has resulted in the foul-smelling mass taking over parts of China's Yellow Sea. The event, which has occurred in the same region over the past six years, always during the summer, has grown exponentially since its last notable interference in 2008. This year's growth is reportedly double in size, measuring in at more than 11,158 square miles. According to a report from the Guardian, officials have removed 7,335 tons of the algae recently in an attempt to control the growth after beach-goers in the nearby city of Qingdao have remain unaffected by the disturbance. While strange in appearance, the algae is reportedly nontoxic to humans but can, however, leave behind the toxic gas hydrogen sulphide. According to a report from the Daily Mail, crews are working to remove the algae as the toxicity is caused if it is left to decompose."