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Cities tend to get hotter than the countryside when a heatwave hits. What can be done about these urban heat traps? How can hot summers be made more tolerable for city dwellers? SWI swissinfo.ch asked an expert at the federal technology institute ETH Zurich.

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Jounalist: Luigi Jorio
Host: Jo Fahy
Audio editor/video journalist: Michele Andina
Distribution and Marketing: Xin Zhang

SWI swissinfo.ch is a public service media company based in Bern, Switzerland.