"Residents of Chongqing, China got quite a surprise when they looked out at the Yangtze River last Saturday: The river, which usually has a golden-brown hue, had been dyed a deep red-orange, and nobody knows why! The crimson coloration first appeared yesterday where the Yangtze meets the Jialin River, but it was also reported at other points along China’s longest river. Officials are currently investigating the cause of the dramatic color change, but so far they haven’t arrived at any conclusive answers."
