The great Italian writer Italo Calvino once wrote “You take delight not in a city's seven or seventy wonders, but in the answer it gives to a question of yours.” Indeed, throughout human history, people have looked to cities for answers – to questions of economics, trade, public health, culture and education. This week, as national leaders begin to consider how they will deliver on the deal agreed at the international climate negotiations in Paris, they should turn to cities once again for answers.
An op-ed by Eduardo Paes, C40 Chair and Mayor of Rio de Janeiro, Anne Hidalgo, Mayor of Paris, and Eric Garcetti, Mayor of Los Angeles
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