The Strait of Hormuz Isn’t the Only Major Shipping Route in Crisis

Policymakers and economists have long treated climate change as a crisis whose costs would mainly accrue to future generations. Unfortunately, that future is here. As the world frets over the consequences of the Iran war on everything from the cost of goods to the food supply, a separate phenomenon is also choking maritime traffic—and will continue to snarl supply chains long after the Strait of Hormuz reopens. Water levels in Germany’s Rhine River—one of Europe’s busiest shipping routes—have…