It is increasingly clear that putting less carbon dioxide in the atmosphere will not be enough to combat climate change; we take a look at the effort to actively remove the stuff from the air. Our correspondent takes a ride on Chicago’s Red Line, whose length represents a shocking level of inequality. And why a push to go organic in Turkey isn’t everyone’s cup of tea. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer Hosted on Acast. See acast.com/privacy for more information.

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“What did the council decide on item 42?” — answered with the speaker and the moment.