Perhaps the most unsettling lesson from the closure of the Strait of Hormuz is the gap between what we knew and how we prepared. Countries should use whatever easing of immediate pressures occurs to strengthen resilience before the next shock arrives. By Máximo Torero

Cities have shown that a combination of adaptation measures and energy efficiency can save lives, improve well-being, reduce energy costs, and create conditions for sustainable growth. A new partnership seeks to help mayors and city leaders scale up these efforts through technical and financial assistance. By Michael R Bloomberg and Teresa Ribera