A worker rows a boat in Chaohu Lake, filled with blue-green algae, in Hefei, Anhui province July 23, 2012. The local environment protection department implemented machines to pump the algae from the lake to a treatment reservoir where it would be decontaminated and recycled, which was the latest solution to fight off blue-green algae on the Chaohu Lake. The new method is able to deal with almost a thousand tonnes of blue-green algae every day, according to local media. [Photo/Agencies]

 Bus and cars wade through a flooded street in Tianjin, North China, July 26, 2012. Heavy rainfall hit the municipality from Wednesday afternoon to Thursday. [Photo/Xinhua]