Of all the fitness tips and tricks, this one may seem the easiest, because you don’t have to move. But are standing desks really good for you? Studies on metabolism and heart health have failed to turn up conclusive results, but there is one area where the benefits are more likely.

I went to college in New Orleans, so I know why its residents love it so. After Hurricane Katrina, 20 years ago, the federal government spent $125bn rebuilding the place. But New Orleans—which sits on swampy, low-lying ground—is sinking. Meanwhile, climate change is making hurricanes worse. The city’s existence looks increasingly precarious. Should the government keep putting money into it?