Efforts to clean up large amounts of green algae from the coastal city of Qingdao were successful, an official said.

Efforts to clean up large amounts of green algae from the coastal city of Qingdao were successful, an official said.

In Qingdao volunteers are fighting an algal bloom choking the coastline and threatening to impede the sailing event.

In Qingdao volunteers are fighting an algal bloom choking the coastline and threatening to impede the sailing event.

In Qingdao, China, volunteers are fighting an algal bloom choking the coastline and threatening to impede the Olympic competition.