Beijing (AsiaNews/Agencies) – More than 10,000 workers and thousands of volunteers have been fighting for days, with bulldozers, bare hands, and more than 1,000 boats, to clear away the algae from 13,000 square kilometers of the basin of Qingdao, where the Olympic sailing regatta is scheduled to take place. More than 100,000 tons of algae have already been removed, while efforts are under way to prevent more from coming into the basin, with the installation of barriers and the cleaning of the mouth of the Yellow River.