By Park Sae-jinPosted : July 2, 2015, 16:44Updated : July 2, 2015, 16:44
Water under the Seongsan Bridge over the Han River is seen green due to algal bloom, Wednesday. Experts say the algal bloom resulted from the decreasing flow of the river and rising water temperatures, both caused by unusually light rainfall in many parts of the country so far this year.
