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Healthier Cities Will Require a Strong Dose of Nature


If we can’t get to the forest, the forest must come to us, in the form of cities designed around green spaces.

On the other hand, a number of recent population-level studies in cities across the globe indicate that people who live in greener areas not only present a lower rate of NCDs but also have significantly better physical and mental health. In fact, the evidence for this association is so strong that, in 2022, 196 countries at the United Nations Conference of Parties for Biodiversity signed an international treaty, part of which included committing to significantly increasing urban green space by 2030. When we inhale a scent we don’t just breathe it out again: Instead, some of the molecules that create their distinctive smell, called volatile organic compounds (VOCs), pass across the lung membrane and into our blood.

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