In May, we gave you a head start on your summer reading list with our bookshelf on the nine British novels that contended for the Climate Fiction Prize. (“ And So I Roar ” by Abi Dare took the prize.) ...

It’s worn on a person’s skin and has sensors to send their heart rate, skin temperature, and other real-time data to a smartphone. The goal is to send an alert when they’re at risk of overheating.