July 1995: A deadly heatwave gripped Chicago - bridges buckled; the power grids failed; and the morgue ran out of space - but some neighbourhoods saw more deaths than others.
Sociologist Eric Klinenberg wanted to know why. So he headed to the hardest hit districts and found that social isolation and loneliness played an unsettling role in their heavy deaths tolls.
Does the Chicago heatwave teach us that in dealing with climate change we need to consider not just physical infrastructure, but social infrastructure too?
Eric Klinenberg's classic text on the topic is called Heat Wave: A Social Autopsy of Disaster in Chicago. For a full list of other sources go to timharford.com
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