As Europe’s heatwaves get more dangerous, here are four ways we can protect ourselves and others

In the newsletter: From avoiding flights to checking on vulnerable neighbours, there are steps we can all take to fight the effects of extreme heat • Don’t get Down to Earth delivered to your inbox? Sign up here From the comfort of a friend’s air-conditioned car last weekend, I watched a dozen sweaty men on a “beer bike tour” chug booze while pedalling through Berlin, as the city broke its temperature record with 39.2C heat. Few wore hats, and their tender pink necks showed signs of sunburn. ...

By Ajit Niranjan