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C40 Cities @c40cities
Joined August 2010
  • Tweets 34,013
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  • Followers 111,623
11,153 Photos and videos
With cities facing growing climate challenges, rethinking our relationship with nature matters now more than ever. At #WCS2026, discussions are centred around how regenerative design can help build cities that are resilient, sustainable and designed to thrive alongside nature.
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@yakisawyerr, C40 Co-Chair & Mayor of Freetown, highlighted a lesson for city leaders: climate action only lasts when people are part of the journey. “Whatever government does, it has to be people-oriented. If people don’t see themselves in the solution, the solution won’t last.”
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Shruti Narayan, C40 Managing Director of Regions and Mayoral Engagement, said: “The solutions are there. But we need to collaborate and accelerate implementation.”
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C40 Cities@c40cities
15h
The challenges facing cities are growing, but so is the momentum to tackle them. As #WCS2026 gets underway, leaders from around the world are gathering to discuss how collaboration and innovation can turn ambition into action for more liveable, resilient, and sustainable cities.
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C40 Cities@c40cities
Jun 14
As cities face rising temperatures, the need for action has never been greater. Kicking off #WCS2026, C40 mayors discussed how nature-based solutions can help build cooler, more resilient cities, and what it takes to scale them from pilot projects to key urban infrastructure.
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5 myths about data centres debunked ⬇️ 🧵
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4⃣ Misconception: We need oil and gas to power data centres otherwise they won’t be reliable Reality: Clean energy can reliably power data centres through renewable generation and power purchase agreements that decarbonise the grid.
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5⃣ Misconception: Data centres create significant local employment Reality: Most jobs are temporary, but cities like Dublin are changing this by introducing data centre training into local schools and creating direct hiring pipelines into the industry.
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5 cities prioritising electric charging ⚡ As many drivers make the transition to electric vehicles, cities play a key role in implementing charging infrastructure.
An illustration of a bustling, colourful city street filled with diverse people, an electric car at a charging station, a delivery truck, an e-scooter, and a cyclist. Text reads: "The way we power our cities is changing. 5 cities prioritising charging for electric taxis, ride-hail, and deliveries. Artwork by Erin Dwia."

ALT An illustration of a bustling, colourful city street filled with diverse people, an electric car at a charging station, a delivery truck, an e-scooter, and a cyclist. Text reads: "The way we power our cities is changing. 5 cities prioritising charging for electric taxis, ride-hail, and deliveries. Artwork by Erin Dwia."

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By making sure chargers are available in every community, cities support businesses, incentivise those who drive the most, and create cleaner, healthier transport systems.
A photo of a beachside cityscape in Rio de Janeiro, overlaid with a graphic of a pink hand holding an electric vehicle charging plug. Text details Rio's launch of fast-charging hubs and plans for expansion.

ALT A photo of a beachside cityscape in Rio de Janeiro, overlaid with a graphic of a pink hand holding an electric vehicle charging plug. Text details Rio's launch of fast-charging hubs and plans for expansion.

An evening photo overlooking the Portland city skyline with mountains in the background, overlaid with a graphic of a delivery person riding a blue electric scooter. Text explains Portland's focus on priority charging areas for ride-hail drivers.

ALT An evening photo overlooking the Portland city skyline with mountains in the background, overlaid with a graphic of a delivery person riding a blue electric scooter. Text explains Portland's focus on priority charging areas for ride-hail drivers.

An aerial photo of a Mexico City street, overlaid with a graphic of a white electric car connected to a lightning bolt symbol. Text outlines the city's programme to help taxi drivers switch to clean energy.

ALT An aerial photo of a Mexico City street, overlaid with a graphic of a white electric car connected to a lightning bolt symbol. Text outlines the city's programme to help taxi drivers switch to clean energy.

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Read more in our new report: c40knowledgehub.org/s/articl…
A daytime photo of modern skyscrapers in London, partially overlaid with a graphic of an EV charging station with a yellow lightning bolt. Text highlights London's pilot model for shared charging facilities among buses, freight, and public fleets.

ALT A daytime photo of modern skyscrapers in London, partially overlaid with a graphic of an EV charging station with a yellow lightning bolt. Text highlights London's pilot model for shared charging facilities among buses, freight, and public fleets.

A photo looking down a New York City street lined with brick apartment buildings and skyscrapers in the distance, overlaid with a large yellow lightning bolt graphic. Text describes NYC's use of spatial analysis to prioritise charging sites in underserved neighbourhoods.

ALT A photo looking down a New York City street lined with brick apartment buildings and skyscrapers in the distance, overlaid with a large yellow lightning bolt graphic. Text describes NYC's use of spatial analysis to prioritise charging sites in underserved neighbourhoods.
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C40 Cities retweeted
Minecraft Education
@PlayCraftLearn
May 29
🏙️Urban planning is coming to Jordan: Minecraft‑style. Through the latest Schools Reinventing Cities challenge, students in Amman are reimagining their communities from the ground up using Minecraft Education. From sustainability to inclusive design, this challenge puts young city‑planners in the driver’s seat, exploring real urban challenges and proposing creative, sustainable solutions. Learn how students are crafting the future of Amman in this article from @C40Cities: 👉 c40reinventingcities.org/en/…
Skyline of Amman, Jordan, recreated in Minecraft

ALT Skyline of Amman, Jordan, recreated in Minecraft

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This week, we're celebrating cities taking action for Global Heat Action Day and @unep's 50 Cities at 50°C campaign. From Freetown to Milan, here's how cities are protecting people from dangerous indoor temperatures ➡️
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🇮🇹Milan converted a schoolyard into a cool gathering space for the community. 🇲🇾Kuala Lumpur added greening and shading, held talks around heat awareness, and opened a dedicated cooling centre for residents.
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🇬🇷Athens is implementing heatwave warnings and constructing green areas with cooling spots 🇦🇷Buenos Aires is planting trees, building green walls and creating shaded gathering spaces. 🇺🇸New York deployed over 20 pop-up cooling stations during the hottest months.
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C40 Cities@c40cities
May 25
How are cities responding to the climate crisis every day and protecting residents? New from the Journal of City Climate Policy and Economy, this issue focuses on advancing equity and justice, covering adaptation and resilience in cities. Read here: c40.me/49cfqe5
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