GREEN ALGAE ― Civic activists hold cups of green algae at Gwanghwamun Square in central Seoul, Wednesday, to urge the government to release containment measures and to warn the public to refrain from water activities in the Hangang River, where algal blooms have spread. Seoul City issued a green algae warning alert Tuesday as the algal blooms spread due to the temperature rise and drought.  (Yonhap)