Vast stretches of the temperate world are baking or burning, and as climate change marches on widespread heatwaves will only grow more intense and more common. After a half-century of insurgency, some rebels of Colombia’s disbanded FARC group needed a new calling: they have become tour guides. And a look at where Ukraine can store its considerable grain harvest. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer