7: red tide (sea water pollution) death of edible fish
7: red tide (sea water pollution) death of edible fish 1: desertification, 2: air pollution. 3: Carbon dioxide (greenhouse gas) 4: Ozone depletion (Fluorocarbon problem), 5: Extreme weather (large scale natural disaster) 6: deforestation (deforestation of the world) world, 7: red tide (sea water pollution) death of edible fish 8: Acid rain (decrease in lake, sea creatures, death) Red tide is the color of sea water by the large growth of phytoplankton, It is reddish brown or brown, green (green is also called aoko) It is said to change to. Recently, red tide came...