C40 Cities
@c40cities.bsky.social
A global network of city mayors delivering urgent climate solutions. Protecting the people and places we love. 🌳🌍🌆💚
http://www.c40.org/
http://www.c40.org/
Climate action can't wait. At #COP30 in Belém, cities are showing how they're leading the way to protect the people and places we love.
C40 Co-Chairs Mayor of Freetown Yvonne Aki-Sawyerr and Mayor of London Sadiq Khan have joined global mayors in announcing their yearly offers of action at #WMS25.
C40 Co-Chairs Mayor of Freetown Yvonne Aki-Sawyerr and Mayor of London Sadiq Khan have joined global mayors in announcing their yearly offers of action at #WMS25.
November 10, 2025 at 7:09 PM
“COP30 will be the COP of truth.” - @lulaoficialbluesky.bsky.social
Cities know disinformation is one of the key obstacles to climate action - so it's great to see it at the top of #COP30's agenda.
Cities know disinformation is one of the key obstacles to climate action - so it's great to see it at the top of #COP30's agenda.
November 10, 2025 at 5:28 PM
“COP30 will be the COP of truth.” - @lulaoficialbluesky.bsky.social
Cities know disinformation is one of the key obstacles to climate action - so it's great to see it at the top of #COP30's agenda.
Cities know disinformation is one of the key obstacles to climate action - so it's great to see it at the top of #COP30's agenda.
Reposted by C40 Cities
This week, I’m at @cop30brazil.bsky.social in Belém where cities are backing the COP30 Presidency's call in moving from negotiation to implementation.
Here’s what to expect from C40 Cities over the next two weeks ⬇️
Here’s what to expect from C40 Cities over the next two weeks ⬇️
November 10, 2025 at 1:03 PM
This week, I’m at @cop30brazil.bsky.social in Belém where cities are backing the COP30 Presidency's call in moving from negotiation to implementation.
Here’s what to expect from C40 Cities over the next two weeks ⬇️
Here’s what to expect from C40 Cities over the next two weeks ⬇️
🚨BREAKING: #COP30 President André Corrêa do Lago opens COP highlighting the role of cities 🏙️
"Subnational entities play a central role in implementing the decisions made at COPs. To stop climate change, multilateralism is unquestionably the way forward.”
"Subnational entities play a central role in implementing the decisions made at COPs. To stop climate change, multilateralism is unquestionably the way forward.”
November 10, 2025 at 3:16 PM
🚨BREAKING: #COP30 President André Corrêa do Lago opens COP highlighting the role of cities 🏙️
"Subnational entities play a central role in implementing the decisions made at COPs. To stop climate change, multilateralism is unquestionably the way forward.”
"Subnational entities play a central role in implementing the decisions made at COPs. To stop climate change, multilateralism is unquestionably the way forward.”
As #COP30 opens in Belém, the message from mayors and local leaders is clear: we are ready to help national governments go further and faster. Only together can we meet the challenge of the climate crisis.
@mayoroflondon.bsky.social @eduardopaesoficial.bsky.social @annehidalgo.bsky.social
@mayoroflondon.bsky.social @eduardopaesoficial.bsky.social @annehidalgo.bsky.social
November 10, 2025 at 1:00 PM
As #COP30 opens in Belém, the message from mayors and local leaders is clear: we are ready to help national governments go further and faster. Only together can we meet the challenge of the climate crisis.
@mayoroflondon.bsky.social @eduardopaesoficial.bsky.social @annehidalgo.bsky.social
@mayoroflondon.bsky.social @eduardopaesoficial.bsky.social @annehidalgo.bsky.social
Here is the message to #COP30 from mayors and local leaders from all over the world - and what we need to move from negotiation to action.
November 10, 2025 at 8:32 AM
Here is the message to #COP30 from mayors and local leaders from all over the world - and what we need to move from negotiation to action.
⚡ Essential reading before #COP30:
There has never been a more urgent argument for multilevel cooperation. Latest UN report confirms the world is off-track to meet the Paris Agreement goals.
Progress needs cities, states & regions as full partners.
Read the city analysis of NDCs 👇
There has never been a more urgent argument for multilevel cooperation. Latest UN report confirms the world is off-track to meet the Paris Agreement goals.
Progress needs cities, states & regions as full partners.
Read the city analysis of NDCs 👇
UN review of national climate plans sees greater support for local action role - C40 Cities
Ahead of COP30 in Belém, Brazil, a United Nations analysis of the latest national climate plans has a clear message:...
www.c40.org
November 9, 2025 at 5:39 PM
⚡ Essential reading before #COP30:
There has never been a more urgent argument for multilevel cooperation. Latest UN report confirms the world is off-track to meet the Paris Agreement goals.
Progress needs cities, states & regions as full partners.
Read the city analysis of NDCs 👇
There has never been a more urgent argument for multilevel cooperation. Latest UN report confirms the world is off-track to meet the Paris Agreement goals.
Progress needs cities, states & regions as full partners.
Read the city analysis of NDCs 👇
BREAKING: UN Secretary-General António Guterres receives local leaders' statement at #COP30 World Leaders Summit
It's a declaration of support from cities, towns & regions to national govts to advance climate solutions, and a call to strengthen partnerships to close the gap on global climate goals.
It's a declaration of support from cities, towns & regions to national govts to advance climate solutions, and a call to strengthen partnerships to close the gap on global climate goals.
November 8, 2025 at 5:30 PM
BREAKING: UN Secretary-General António Guterres receives local leaders' statement at #COP30 World Leaders Summit
It's a declaration of support from cities, towns & regions to national govts to advance climate solutions, and a call to strengthen partnerships to close the gap on global climate goals.
It's a declaration of support from cities, towns & regions to national govts to advance climate solutions, and a call to strengthen partnerships to close the gap on global climate goals.
While the US federal government is trying to block global climate action, cities are stepping in to lead.
At #WMS25, mayors came together to stop climate breakdown. Hear what it was like on the ground in the Cities 1.5 World Mayors Summit Special dropping on 18 Nov. https://lnk.to/S6Trailer
At #WMS25, mayors came together to stop climate breakdown. Hear what it was like on the ground in the Cities 1.5 World Mayors Summit Special dropping on 18 Nov. https://lnk.to/S6Trailer
Cities 1.5 World Mayors Summit Special
Mayors came together to lead the fight to stop climate breakdown.
lnk.to
November 8, 2025 at 4:12 PM
While the US federal government is trying to block global climate action, cities are stepping in to lead.
At #WMS25, mayors came together to stop climate breakdown. Hear what it was like on the ground in the Cities 1.5 World Mayors Summit Special dropping on 18 Nov. https://lnk.to/S6Trailer
At #WMS25, mayors came together to stop climate breakdown. Hear what it was like on the ground in the Cities 1.5 World Mayors Summit Special dropping on 18 Nov. https://lnk.to/S6Trailer
Reposted by C40 Cities
In the first #InsideCOP episode from Brazil, we go inside the #COP30 Local Leaders Forum in Rio de Janeiro - where mayors, governors, and regional leaders are driving climate progress from the ground up. tr.ee/InsideCOP
November 7, 2025 at 9:11 AM
In the first #InsideCOP episode from Brazil, we go inside the #COP30 Local Leaders Forum in Rio de Janeiro - where mayors, governors, and regional leaders are driving climate progress from the ground up. tr.ee/InsideCOP
During #WMS25 @outrageoptimism.bsky.social spoke with mayors about how they are turning ambition into action.
Listen to interviews with the mayors of Paris, Freetown, and Portland about how cities are cutting emissions, investing in resilience, and driving progress.
Listen to interviews with the mayors of Paris, Freetown, and Portland about how cities are cutting emissions, investing in resilience, and driving progress.
Inside COP: The Power of Cities - from the Local Leaders Forum
In the first Inside COP episode from Brazil, we go inside the COP30 Local Leaders Forum in Rio de Janeiro - where mayors, governors, and regional leaders are driving climate progress from the ground u...
www.outrageandoptimism.org
November 8, 2025 at 11:13 AM
During #WMS25 @outrageoptimism.bsky.social spoke with mayors about how they are turning ambition into action.
Listen to interviews with the mayors of Paris, Freetown, and Portland about how cities are cutting emissions, investing in resilience, and driving progress.
Listen to interviews with the mayors of Paris, Freetown, and Portland about how cities are cutting emissions, investing in resilience, and driving progress.
Copenhagen is building a cleaner future.
Lord Mayor Lars Weiss has committed that from 2026, all new municipal projects will meet low-emission standards, cutting construction carbon by about 20%.
#WMS25
Lord Mayor Lars Weiss has committed that from 2026, all new municipal projects will meet low-emission standards, cutting construction carbon by about 20%.
#WMS25
November 7, 2025 at 6:00 PM
Copenhagen is building a cleaner future.
Lord Mayor Lars Weiss has committed that from 2026, all new municipal projects will meet low-emission standards, cutting construction carbon by about 20%.
#WMS25
Lord Mayor Lars Weiss has committed that from 2026, all new municipal projects will meet low-emission standards, cutting construction carbon by about 20%.
#WMS25
"Mayors, we get the job done" ⭐
Meet the local leaders taking real climate action, defying populist governments who dismiss and deny science.
Meet the local leaders taking real climate action, defying populist governments who dismiss and deny science.
November 7, 2025 at 4:30 PM
"Mayors, we get the job done" ⭐
Meet the local leaders taking real climate action, defying populist governments who dismiss and deny science.
Meet the local leaders taking real climate action, defying populist governments who dismiss and deny science.
Climate action means restoring nature in our cities.
In Wuhan, the city has committed to restoring Xibeihu Lake and transforming unused spaces into green gardens using sustainable practices like composting, enhancing the urban ecosystem for all.
#WMS25
In Wuhan, the city has committed to restoring Xibeihu Lake and transforming unused spaces into green gardens using sustainable practices like composting, enhancing the urban ecosystem for all.
#WMS25
November 7, 2025 at 4:00 PM
Climate action means restoring nature in our cities.
In Wuhan, the city has committed to restoring Xibeihu Lake and transforming unused spaces into green gardens using sustainable practices like composting, enhancing the urban ecosystem for all.
#WMS25
In Wuhan, the city has committed to restoring Xibeihu Lake and transforming unused spaces into green gardens using sustainable practices like composting, enhancing the urban ecosystem for all.
#WMS25
Building a more inclusive, climate-resilient Tshwane.
Over the next year, Executive Mayor Dr. Nasiphi Moya has pledged to revitalise vulnerable areas through tree planting, clean-up drives and urban greening to build a safer, cooler Tshwane.
#WMS25
Over the next year, Executive Mayor Dr. Nasiphi Moya has pledged to revitalise vulnerable areas through tree planting, clean-up drives and urban greening to build a safer, cooler Tshwane.
#WMS25
November 7, 2025 at 2:00 PM
Building a more inclusive, climate-resilient Tshwane.
Over the next year, Executive Mayor Dr. Nasiphi Moya has pledged to revitalise vulnerable areas through tree planting, clean-up drives and urban greening to build a safer, cooler Tshwane.
#WMS25
Over the next year, Executive Mayor Dr. Nasiphi Moya has pledged to revitalise vulnerable areas through tree planting, clean-up drives and urban greening to build a safer, cooler Tshwane.
#WMS25
Santiago is planting seeds of climate resilience.
Governor of the Metropolitan Region of Santiago de Chile, Claudio Benjamin Orrego, has committed to transforming urban spaces with 33 new pocket forests, bringing natural cooling and cleaner air to neighbourhoods that need it most.
#WMS25
Governor of the Metropolitan Region of Santiago de Chile, Claudio Benjamin Orrego, has committed to transforming urban spaces with 33 new pocket forests, bringing natural cooling and cleaner air to neighbourhoods that need it most.
#WMS25
November 7, 2025 at 12:00 PM
Santiago is planting seeds of climate resilience.
Governor of the Metropolitan Region of Santiago de Chile, Claudio Benjamin Orrego, has committed to transforming urban spaces with 33 new pocket forests, bringing natural cooling and cleaner air to neighbourhoods that need it most.
#WMS25
Governor of the Metropolitan Region of Santiago de Chile, Claudio Benjamin Orrego, has committed to transforming urban spaces with 33 new pocket forests, bringing natural cooling and cleaner air to neighbourhoods that need it most.
#WMS25
Reposted by C40 Cities
Hope or despair?
That’s the choice facing the world at COP30 in Brazil.
On the final day of the @c40cities.bsky.social World Mayor’s Summit, local leaders made it clear where we stand.
That’s the choice facing the world at COP30 in Brazil.
On the final day of the @c40cities.bsky.social World Mayor’s Summit, local leaders made it clear where we stand.
November 6, 2025 at 1:02 PM
Hope or despair?
That’s the choice facing the world at COP30 in Brazil.
On the final day of the @c40cities.bsky.social World Mayor’s Summit, local leaders made it clear where we stand.
That’s the choice facing the world at COP30 in Brazil.
On the final day of the @c40cities.bsky.social World Mayor’s Summit, local leaders made it clear where we stand.
Amman is accelerating green transport and smart waste management.
His Excellency, Dr. Yousef Al-Shawarbeh, Mayor of Amman has pledged to add new zero-emission buses and expand city-wide waste separation systems to create a greener, more circular economy.
#WMS25
His Excellency, Dr. Yousef Al-Shawarbeh, Mayor of Amman has pledged to add new zero-emission buses and expand city-wide waste separation systems to create a greener, more circular economy.
#WMS25
November 7, 2025 at 10:00 AM
Amman is accelerating green transport and smart waste management.
His Excellency, Dr. Yousef Al-Shawarbeh, Mayor of Amman has pledged to add new zero-emission buses and expand city-wide waste separation systems to create a greener, more circular economy.
#WMS25
His Excellency, Dr. Yousef Al-Shawarbeh, Mayor of Amman has pledged to add new zero-emission buses and expand city-wide waste separation systems to create a greener, more circular economy.
#WMS25
Nanjing is building a future that’s both green and resilient.
The city has pledged that every new building that's part of its Sponge City project will meet green standards to make the city more resilient to climate risks.
#WMS25
The city has pledged that every new building that's part of its Sponge City project will meet green standards to make the city more resilient to climate risks.
#WMS25
November 7, 2025 at 8:00 AM
Nanjing is building a future that’s both green and resilient.
The city has pledged that every new building that's part of its Sponge City project will meet green standards to make the city more resilient to climate risks.
#WMS25
The city has pledged that every new building that's part of its Sponge City project will meet green standards to make the city more resilient to climate risks.
#WMS25
Barcelona is investing directly in community climate resilience.
Mayor http://jaumecollboni.bsky.social/ has pledged to use tourist tax to protect some of the city's most vulnerable residents from extreme heat, for example by installing solar panels and cooling systems in schools.
#WMS25
Mayor http://jaumecollboni.bsky.social/ has pledged to use tourist tax to protect some of the city's most vulnerable residents from extreme heat, for example by installing solar panels and cooling systems in schools.
#WMS25
November 6, 2025 at 8:00 PM
Barcelona is investing directly in community climate resilience.
Mayor http://jaumecollboni.bsky.social/ has pledged to use tourist tax to protect some of the city's most vulnerable residents from extreme heat, for example by installing solar panels and cooling systems in schools.
#WMS25
Mayor http://jaumecollboni.bsky.social/ has pledged to use tourist tax to protect some of the city's most vulnerable residents from extreme heat, for example by installing solar panels and cooling systems in schools.
#WMS25
Reposted by C40 Cities
The climate crisis is the biggest challenge of our time, but sophisticated disinformation campaigns are threatening the ability of local leaders to respond.
At C40's World Mayors Summit, mayors from around the world discussed how we can tackle disinformation and protect progress.
At C40's World Mayors Summit, mayors from around the world discussed how we can tackle disinformation and protect progress.
November 5, 2025 at 1:43 PM
The climate crisis is the biggest challenge of our time, but sophisticated disinformation campaigns are threatening the ability of local leaders to respond.
At C40's World Mayors Summit, mayors from around the world discussed how we can tackle disinformation and protect progress.
At C40's World Mayors Summit, mayors from around the world discussed how we can tackle disinformation and protect progress.
Reposted by C40 Cities
We need bold, ambitious climate action if we want to deliver a fairer, healthier future for all.
Today at the @bloombergdotorg.bsky.social summit I listened to leaders on the forefront of the climate emergency who have pioneered climate policies to improve the lives of the people they serve.
Today at the @bloombergdotorg.bsky.social summit I listened to leaders on the forefront of the climate emergency who have pioneered climate policies to improve the lives of the people they serve.
November 5, 2025 at 7:53 PM
We need bold, ambitious climate action if we want to deliver a fairer, healthier future for all.
Today at the @bloombergdotorg.bsky.social summit I listened to leaders on the forefront of the climate emergency who have pioneered climate policies to improve the lives of the people they serve.
Today at the @bloombergdotorg.bsky.social summit I listened to leaders on the forefront of the climate emergency who have pioneered climate policies to improve the lives of the people they serve.
Reposted by C40 Cities
From London to Lagos; Beijing to Bogota; Dhaka to Accra - cities are stepping up, taking the bold action this moment demands of us.
At the C40 World Mayors Summit, I joined mayors from around the world to learn and share how cities are leading the way towards a greener future.
At the C40 World Mayors Summit, I joined mayors from around the world to learn and share how cities are leading the way towards a greener future.
November 6, 2025 at 10:36 AM
From London to Lagos; Beijing to Bogota; Dhaka to Accra - cities are stepping up, taking the bold action this moment demands of us.
At the C40 World Mayors Summit, I joined mayors from around the world to learn and share how cities are leading the way towards a greener future.
At the C40 World Mayors Summit, I joined mayors from around the world to learn and share how cities are leading the way towards a greener future.
Local leadership is powering global climate progress.
Congratulations to @bloombergdotorg.bsky.social Local Leaders Climate Awards winners, C40 cities Boston, Oslo, São Paulo, Beijing, Rio, Salvador, Quezon City & Sofia (Breathe Cities).
@eduardopaesoficial.bsky.social @ricardonunes15.bsky.social
Congratulations to @bloombergdotorg.bsky.social Local Leaders Climate Awards winners, C40 cities Boston, Oslo, São Paulo, Beijing, Rio, Salvador, Quezon City & Sofia (Breathe Cities).
@eduardopaesoficial.bsky.social @ricardonunes15.bsky.social
November 6, 2025 at 6:36 PM
Local leadership is powering global climate progress.
Congratulations to @bloombergdotorg.bsky.social Local Leaders Climate Awards winners, C40 cities Boston, Oslo, São Paulo, Beijing, Rio, Salvador, Quezon City & Sofia (Breathe Cities).
@eduardopaesoficial.bsky.social @ricardonunes15.bsky.social
Congratulations to @bloombergdotorg.bsky.social Local Leaders Climate Awards winners, C40 cities Boston, Oslo, São Paulo, Beijing, Rio, Salvador, Quezon City & Sofia (Breathe Cities).
@eduardopaesoficial.bsky.social @ricardonunes15.bsky.social
The future of urban transport is electric and accessible to all.
Mayor Carola Schouten has pledged to drastically expand Rotterdam's charging network with new charging points and specialised hubs for port freight, powering a cleaner city.
#WMS25
Mayor Carola Schouten has pledged to drastically expand Rotterdam's charging network with new charging points and specialised hubs for port freight, powering a cleaner city.
#WMS25
November 6, 2025 at 6:00 PM
The future of urban transport is electric and accessible to all.
Mayor Carola Schouten has pledged to drastically expand Rotterdam's charging network with new charging points and specialised hubs for port freight, powering a cleaner city.
#WMS25
Mayor Carola Schouten has pledged to drastically expand Rotterdam's charging network with new charging points and specialised hubs for port freight, powering a cleaner city.
#WMS25