A car heads south on a bridge over a mostly dry Platte River, south of Columbus, Nebraska, on July 28. Waterways have dried to a trickle thanks to droughts and heat waves that owe their origins to climate change. Rivers across the globe are disappearing. From the US to Italy to China, waters have receded , leaving nothing but barren banks of silt and oozing, muddied sand. Canals are empty. Reservoirs have turned to dust. The world is fully in the grip of accelerating climate change, and it has a profound economic impact. Losing waterways means a serious risk to shipping routes, agriculture , energy supplies — even drinking water. Rivers that have been critical to commerce for centuries are now shriveled, threatening the global movement of chemicals, fuel, food and other commodities. The Rhine — a pillar of the German, Dutch and Swiss economies — has been virtually […]