His conclusion: “Holy cow, the rivers of the world are a lot different than we thought.” Some are changing by 5% or 10% a year, the report found. “That’s rapid, rapid change,” Gleeson said.

The Russian city of Orenburg battled rising water levels on Thursday after major rivers across Russia and Kazakhstan burst their banks in the worst flooding seen in the areas in nearly a century.

(CNN) — The nearly 3 million rivers that weave across the world are experiencing rapid and surprising changes, with potentially drastic implications for everything from drinking water supplies ...