Western citizens have come to think of floods as happening elsewhere. At their worst, they happen in the developing world. When they happen at home, they are the bane of the countryside, where water pulses through valleys and villages.
But the city, a fortress of tarmac and concrete, a marvel of modern civil engineering, has left us with a false sense of security. That dam might be about to burst.
After the recent flooding in London I found myself thinking: “How could it happen here?”
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