Rainfall changes caused by global warming will increase river flooding risks across the globe by the 2040s, says a new study.

In the last week, calving events at Lake Palcacocha in the Peruvian Andes released masses of ice from a glacier on Mount Pucaranra, showing the weakness of the existing infrastructure designed to protect the region from floods.

Over time, the U.S. Army Corps of Engineers, the federal engineering and construction agency, has spent over $123 billion on flood control infrastructure that hasn’t always adequately protected us. Now, with the devastation of the spring floods in the Midwest, some are calling for a new approach to flood control that makes room for our rivers.