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Planetary Crisis & Ecology

Milan, Italy: Can Trees Cool a Dense European City?

Green Cities Series | Article 17 For a decade, the Lombard capital has captured...

Cape Town and the Watershed of Resilience: A Metropolitan Study of Post-Drought Transformation

GREEN CITIES SERIES | ARTICLE 15 The atmospheric tension in Cape Town during the austral summer of 2017–2018 was characterized by a distinct psychological phenomena...

Why Mexico City is Sinking: The Environmental History of a Modern Water Crisis

Mexico City faces sinking and water crises due to drained lakes and urban growth. Explore the environmental challenges and solutions shaping its future

The Common Table in a Burning World: Why the United Nations Must Be Revived, Not Abandoned

The chamber still looks improbably calm. Green marble. Translation headsets. Country names set out in alphabetical order, as though the world’s grief can be...

Shenzhen, China: Electrifying the Megacity

GREEN CITIES SERIES  |  ARTICLE 10 In 2017, Shenzhen became the first city in the world to operate a fully electric public bus fleet. In...

World Environment Day 2026: Climate Action – Why It’s Still So Hard — and What Works

Clean energy is booming, yet emissions keep breaking records. A clear-eyed 2026 look at climate action—what's working, what's failing, and what it will take.

Barcelona Superblocks: The Radical Battle for Quiet, Green Cities

Inside Barcelona's radical push to reclaim streets from cars. How the superblock grid battles noise, heat, and tourism to recover Cerdà's vision.

Bogotá, Colombia: Mobility as Democratic Space

GREEN CITIES SERIES  |  ARTICLE 8 Every Sunday, Bogotá returns the streets to its people. That act — repeated for fifty years, in a city...

Seoul, and the Return of Water

GREEN CITY SERIES| ARTICLE 11 How river daylighting changed the argument in South Korea’s capital — and why the harder work of a green city...

Curitiba, Brazil: The Classic Model Revisited

GREEN CITIES SERIES  |  ARTICLE 9 For fifty years, urban planners have travelled to Curitiba to study what happened when a young architect-mayor decided that...

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