In Japan, dying coral reefs

Coral reefs die due to bleaching near many Islands in the southwestern part of Japan, including on Okinawa. The reason – very warm water, this summer seawater temperatures rose to 31 degrees. The researchers say that the current situation may be most serious over the last 20 years. Usually strong winds from tropical storms help to mix cold water from the depths with warm water on the surface, but this year the Typhoon have not yet been.