Urban data centres are one of the fastest-growing challenges facing mayors across the C40 network, with more than 1,700 located in C40 cities alone.
On this week’s Cities 1.5 episode, Professor Hannah Daly discusses the connection between data centres, climate action and cities: lnk.to/S6E8
This #WorldPublicTransportDay, we celebrate the journeys that move all of us.
On the Cities 1.5 podcast:
🚃 Mayor of Melbourne on how he connects with residents on free tram rides
⚡ The Mayor of Amman on transforming the city by launching electric buses.
lnk.to/HotTakes3
Who keeps a city running when disaster strikes? This week on Cities 1.5, David Miller speaks with Ritwika Basu about informal workers in India’s cities, who are powering recovery and keeping communities and supply chains standing: https://lnk.to/S6E7
Hello, World NASA astronaut and Artemis II Commander Reid Wiseman took this picture of Earth from the Orion spacecraft's window.
A crescent Earth setting behind the Moon’s horizon.
Earth as seen from the Orion capsule. It is divided sharply in half, with a line running diagonally from the 11 o'clock to the 4 o'clock. The lower left half is a bright pale blue. Its surface is covered with swirly, puffy white clouds, with texture indicating different thicknesses. The upper right half is dark, with no illumination from the Sun. Earth is set against the black of space.
It's worth protecting. 🌍
📸: NASA
#Artemis #ArtemisII
Bold white text reads: "99% of people live in areas where air quality levels are unsafe." on the background of an image of a city with air pollution Another text box reads: "But clean air zones are changing this >"
What are cities doing? Brussels: Nitrogen dioxide pollution is down by 37% since the low emission zone was introduced Seoul: The city’s Green Transport Zone reduced the number of high-polluting vehicles by more than 85% between 2019 and 2025 New York City: The Congestion Relief Zone led to 27 million fewer vehicles entering Manhattan in its first year, with overall traffic down 11%
Clean air zones can... transform cities deliver public health benefits improve traffic congestion and road safety
This #WorldHealthDay, see how cities are making clean air a reality.
From low emission zones to bold policies, change is already underway.
Learn more about how cities are cutting toxic air pollution: c40.org/what-we-do/s...
By shaping sustainable data centres, cities can help manage new pressures on energy, water and local communities.
🔴 One data centre can use as much electricity as 100,000 homes
🔴 24-hour operation requires large cooling systems to keep temperatures safe
🔴 Data centres often need valuable space close to energy networks, competing with housing and green space
🇸🇪Stockholm: Capturing waste heat to warm homes
🇸🇬Singapore: Setting strict efficiency standards and protecting limited land and energy resources
🇺🇸Phoenix: Cutting resource use via zoning and water recycling requirements
🇿🇦Cape Town: Developing ways for data centres to access renewable energy
Data centres store and process the data we rely on to do things like send emails and stream our favourite shows. As digital demand increases, more data centres are being built, often close to cities where the need is highest. How are cities developing data centres with people and planet in mind?
Data centres power our digital lives.
‼️1,700 data centres are now located in C40 cities.
By increasing waste collection and treatment capacity, cities can reduce emissions.
Mayors are delivering action at pace by focusing on making their cities cleaner, healthier, and more resilient.
By prioritising organic waste collection and treatment, we can drive a future that's cleaner, greener, and fairer.
Cities around the world are improving the way they manage waste.
By increasing collection and treatment capacity, cities are reducing emissions and becoming more resilient.
#ZeroWasteDay
Find out more: c40reinventingcities.org/en/events/la...
Students around the world have redesigned public spaces for a climate-resilient, inclusive, and food-secure future.
And now, we’re looking for students in Amman to tackle urban farming, zero food waste and access to healthy food for everyone 🌱 ♻️ 🍎
Brazil just announced that 34 cities will develop climate projects through the Brazil Mutirão Program.
👉 Read the full announcement: www.c40.org/news/brazil-...
A graphic with tick box that reads When the EU, national and local governments work together, climate action gets delivered faster and fairer. Policies, finance and local leadership come together to turn climate plans into real change.
🔴GOOD NEWS!
New C40 x GCoM report shows how the EU combines climate implementation with local leadership 🇪🇺
Read the report: c40.org/news/multile...
Citie 1.5 podcast poster showing a split screen of Melbourne and Athens. It has the title 'A tale of two cities' and the C40 Centre logo.
🎙️A tale of two cities
In this week’s podcast episode of Cities 1.5, hear from the Mayor of Athens about how he is tackling energy poverty and from the Lord Mayor of Melbourne about boosting urban greening: lnk.to/S6E6 🎙️
🇺🇸 NYC paved Brooklyn streets to soak up rain and minimise flood risks.
🇵🇭 Quezon City developed a plan to test, monitor and improve the health of its main rivers.
🇪🇨 Quito trained community leaders to help manage water distribution during emergencies.
🇬🇧 London has a 10-year plan to clean up its waterways and the River Thames.
🇫🇷 Paris has made the River Seine swimmable for the first time in over a century.
🇮🇩 Jakarta is expanding its piped water network so more residents can access safe, reliable drinking water.
Health, food, nature, equity, and climate security all flow from water.
➡️ 3 out of 4 jobs worldwide depend on water
➡️ Reliable access to water is essential to economic growth and job creation in the coming decades
Water underpins health, jobs and climate resilience.
Cities investing in water security are investing in a safer future.
#WorldWaterDay
Conan O'Brien is wearing a crown, a red cape and a prop bird is delivering him an Oscar.
How it feels to protect biodiversity
#Oscars #Oscars2026
Michael Jordan holds an Oscar award with a huge smile on his face. He is wearing a black suit.
Knowing that over 100million people are breathing cleaner air across C40 cities.
#Oscars #Oscars2026
Cut energy use.
Unlock solar power.
Create green jobs.
Train city staff in climate equity.
That’s what climate action looked like in Quezon City over the past 4 years - made possible in partnership with the UK and Quezon City
📽️Learn more: www.c40.org/news/quezon-...
NEW INTERVIEW: Former Canadian Environment and Climate Minister Catherine McKenna discusses
- Fighting back against the media
- Her role in the Paris Agreement
- Life after politics
Listen to the Cities 1.5 podcast here: lnk.to/S6E5
🇵🇭Quezon City is partnering with local women leaders to help shape the green revolution.
🇪🇹Addis Ababa is helping women build technical skills and boost incomes through training.
🇯🇴Amman is training women in plumbing to help tackle water scarcity.
