July 1995. A deadly heat wave gripped Chicago - bridges buckled; the power grids failed; and the morgue ran out of space - but some neighbourhoods saw more deaths than others. Of course, richer and leafier districts suffered less, but poor places where social interaction was difficult and loneliness a problem were hit hardest of all.   

Does the Chicago heat wave teach us that in dealing with climate change we need to consider not just physical infrastructure, but social infrastructure too?  

For a full list of sources go to timharford.com

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