The water color of a reservoir in Honolulu, the capital and port city of the US state of Hawaii, suddenly changed. The color of the water is now dark pink. People are flocking to see that water. Scientists say that this may be due to drought. They have warned people not to enter or drink the water.
Staff at Kelea Pond National Wildlife Refuge in Maui have been seeing this change in water color since October 30.
Algae can cause the water to turn a dark pink color, Wolff said. However, laboratory tests showed that the water did not change color due to the toxic algae; Rather, it may be caused by a single-celled organism called halobacteria.