How to build resilience to extreme heat

Parametric finance and nature-based solutions can help cities adapt to extreme heat which, unlike floods or storms, leaves little visible damage behind

IN THE summer of 2015, an atmospheric omega block settled over Europe and refused to move. These slow-moving high-pressure systems trap hot air like a lid, letting temperatures build for days or weeks. Across much of western Europe, temperatures climbed 7°C above seasonal norms. In Britain alone, more than 9,200 deaths were attributed to the heat.