Carles Baiges and Eliseu Arrufat from the architecture collective Lacol on how the dense city of Barcelona is defying climate change. Barcelona is one of the most densely populated cities in Europe, with 12,000 inhabitants per square kilometre; only Paris has more. How does a city of this density cope with global warming? Carles Baiges: The city’s density has many advantages in terms of sustainability, but there are also disadvantages. It’s positive that less area is sealed overall, plus nearly everything you need for daily life is within walking distance. You don’t need a car to go grocery shopping, and even getting to work is possible for many by bike or e-scooter.

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