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/
#COP30 fell short - and missed the opportunity to truly shift from negotiation to implementation.
But mayors will not slow down. We're delivering ambitious, inclusive climate action now. The world needs to follow the pace of cities.
But mayors will not slow down. We're delivering ambitious, inclusive climate action now. The world needs to follow the pace of cities.
November 25, 2025 at 4:11 PM
#COP30 fell short - and missed the opportunity to truly shift from negotiation to implementation.
But mayors will not slow down. We're delivering ambitious, inclusive climate action now. The world needs to follow the pace of cities.
But mayors will not slow down. We're delivering ambitious, inclusive climate action now. The world needs to follow the pace of cities.
From cooling centres in Phoenix to tree planting in Quezon City, mayors are fighting extreme heat.
The new C40 Cool Cities Accelerator is scaling these life-saving actions, helping cities worldwide protect residents and build a more liveable urban future.
The new C40 Cool Cities Accelerator is scaling these life-saving actions, helping cities worldwide protect residents and build a more liveable urban future.
November 25, 2025 at 10:02 AM
From cooling centres in Phoenix to tree planting in Quezon City, mayors are fighting extreme heat.
The new C40 Cool Cities Accelerator is scaling these life-saving actions, helping cities worldwide protect residents and build a more liveable urban future.
The new C40 Cool Cities Accelerator is scaling these life-saving actions, helping cities worldwide protect residents and build a more liveable urban future.
Reposted by C40 Cities
My comment on the #COP30 outcome:
Multilateralism needed a boost in Belém, and instead it got a bandage. The COP process needs to take a long, hard look at itself.
Multilateralism needed a boost in Belém, and instead it got a bandage. The COP process needs to take a long, hard look at itself.
November 22, 2025 at 7:20 PM
My comment on the #COP30 outcome:
Multilateralism needed a boost in Belém, and instead it got a bandage. The COP process needs to take a long, hard look at itself.
Multilateralism needed a boost in Belém, and instead it got a bandage. The COP process needs to take a long, hard look at itself.
As we wait for the official outcome of #COP30, here’s a time capsule of its last day: the outrage, the optimism, the urgency, and the sheer human effort that goes into trying to land a deal.
The latest episode of @outrageoptimism.bsky.social featuring C40’s Eric Garcetti & @mark--watts.bsky.social:
The latest episode of @outrageoptimism.bsky.social featuring C40’s Eric Garcetti & @mark--watts.bsky.social:
Inside COP: Friday Night in Belém - uncertainty in the Blue Zone
This episode is a time capsule that captures the feeling of a COP Friday: the confusion, the determination, the fear of losing ambition, and the belief, still very much alive, that progress is possibl...
www.outrageandoptimism.org
November 22, 2025 at 10:04 AM
As we wait for the official outcome of #COP30, here’s a time capsule of its last day: the outrage, the optimism, the urgency, and the sheer human effort that goes into trying to land a deal.
The latest episode of @outrageoptimism.bsky.social featuring C40’s Eric Garcetti & @mark--watts.bsky.social:
The latest episode of @outrageoptimism.bsky.social featuring C40’s Eric Garcetti & @mark--watts.bsky.social:
”On the brink of collapse, #COP30 needs cities to survive”
Former LA Mayor Eric Garcetti warns a non-consensus COP30 would be a "worst message at the most urgent moment."
The solution is to bring cities to the table: an “easy win” to prevent the conference from sinking.
Former LA Mayor Eric Garcetti warns a non-consensus COP30 would be a "worst message at the most urgent moment."
The solution is to bring cities to the table: an “easy win” to prevent the conference from sinking.
November 21, 2025 at 6:54 PM
”On the brink of collapse, #COP30 needs cities to survive”
Former LA Mayor Eric Garcetti warns a non-consensus COP30 would be a "worst message at the most urgent moment."
The solution is to bring cities to the table: an “easy win” to prevent the conference from sinking.
Former LA Mayor Eric Garcetti warns a non-consensus COP30 would be a "worst message at the most urgent moment."
The solution is to bring cities to the table: an “easy win” to prevent the conference from sinking.
Our reaction to the disappointing draft outcome of #COP30 is the lead story in Brazil’s biggest paper today.
A COP30 declaration without any proposal to phase out fossil fuels would be a huge wasted opportunity - and could reduce the global mutirão to ashes.
A COP30 declaration without any proposal to phase out fossil fuels would be a huge wasted opportunity - and could reduce the global mutirão to ashes.
November 21, 2025 at 2:37 PM
Our reaction to the disappointing draft outcome of #COP30 is the lead story in Brazil’s biggest paper today.
A COP30 declaration without any proposal to phase out fossil fuels would be a huge wasted opportunity - and could reduce the global mutirão to ashes.
A COP30 declaration without any proposal to phase out fossil fuels would be a huge wasted opportunity - and could reduce the global mutirão to ashes.
🚨BREAKING: historic scenes at #COP30 as Colombia launches the Belém Declaration on fossil fuels, together with a first international conference on a just transition away from fossil fuels - and invites cities and subnationals.
November 21, 2025 at 1:18 PM
🚨BREAKING: historic scenes at #COP30 as Colombia launches the Belém Declaration on fossil fuels, together with a first international conference on a just transition away from fossil fuels - and invites cities and subnationals.
‼️ #COP30 could miss a historic opportunity if it does not formally include cities and subnationals in its outcome text.
Caterina Sarfatti, Head of the C40 Cities delegation at #COP30:
“This will not be the COP of implementation without highlighting the implementers."
Caterina Sarfatti, Head of the C40 Cities delegation at #COP30:
“This will not be the COP of implementation without highlighting the implementers."
Líderes do C40 propõem participação subnacional na carta final da COP30
Líderes do C40 propõem participação subnacional na carta final da COP30
www.cnnbrasil.com.br
November 21, 2025 at 12:36 PM
Reposted by C40 Cities
While @cop30brazil.bsky.social has been framed as a 'COP of implementation', @c40cities.bsky.social has argued that this will only be possible if #cities and other sub-nationals are recognised as critical partners in planning and delivery. 🏢
sustainabilityonline.net?p=16943
sustainabilityonline.net?p=16943
Cities need to be recognised as critical partners in climate action, says C40 - Sustainability Online
While COP30 has been framed as a 'COP of implementation', C40 has argued that this will only be possible if cities and other sub-nationals are recognised.
sustainabilityonline.net
November 20, 2025 at 12:57 PM
While @cop30brazil.bsky.social has been framed as a 'COP of implementation', @c40cities.bsky.social has argued that this will only be possible if #cities and other sub-nationals are recognised as critical partners in planning and delivery. 🏢
sustainabilityonline.net?p=16943
sustainabilityonline.net?p=16943
🚨BREAKING: C40 Cities reacts to the disappointing draft outcome of #COP30
@mark--watts.bsky.social, C40 Cities Executive Director, on the draft of the Belém Political Package:
“The draft texts we've seen this morning in Belém suggest several parties are trying to leave the global mutirão in ashes.
@mark--watts.bsky.social, C40 Cities Executive Director, on the draft of the Belém Political Package:
“The draft texts we've seen this morning in Belém suggest several parties are trying to leave the global mutirão in ashes.
November 21, 2025 at 12:21 PM
🚨BREAKING: C40 Cities reacts to the disappointing draft outcome of #COP30
@mark--watts.bsky.social, C40 Cities Executive Director, on the draft of the Belém Political Package:
“The draft texts we've seen this morning in Belém suggest several parties are trying to leave the global mutirão in ashes.
@mark--watts.bsky.social, C40 Cities Executive Director, on the draft of the Belém Political Package:
“The draft texts we've seen this morning in Belém suggest several parties are trying to leave the global mutirão in ashes.
The Yearly Offer of Action shows cities worldwide acting now — closing the gap between pledges and progress.
Cities are calling on national governments to work closer with them to go further and faster in tackling the climate crisis.
https://www.c40.org/news/yearly-offer-of-action/
Cities are calling on national governments to work closer with them to go further and faster in tackling the climate crisis.
https://www.c40.org/news/yearly-offer-of-action/
November 21, 2025 at 8:46 AM
The Yearly Offer of Action shows cities worldwide acting now — closing the gap between pledges and progress.
Cities are calling on national governments to work closer with them to go further and faster in tackling the climate crisis.
https://www.c40.org/news/yearly-offer-of-action/
Cities are calling on national governments to work closer with them to go further and faster in tackling the climate crisis.
https://www.c40.org/news/yearly-offer-of-action/
At #COP30 youth are urging to put cities & local solutions at the heart of climate action.
Global Youth is urging national govts to endorse & implement CHAMP to strengthen cooperation between national & local governments to ensure this becomes the COP of Implementation.
@mayors4climate.bsky.social
Global Youth is urging national govts to endorse & implement CHAMP to strengthen cooperation between national & local governments to ensure this becomes the COP of Implementation.
@mayors4climate.bsky.social
November 20, 2025 at 4:47 PM
At #COP30 youth are urging to put cities & local solutions at the heart of climate action.
Global Youth is urging national govts to endorse & implement CHAMP to strengthen cooperation between national & local governments to ensure this becomes the COP of Implementation.
@mayors4climate.bsky.social
Global Youth is urging national govts to endorse & implement CHAMP to strengthen cooperation between national & local governments to ensure this becomes the COP of Implementation.
@mayors4climate.bsky.social
🏙️ CITIES ARE DELIVERING.
A new @mayors4climate.bsky.social – @c40cities.bsky.social assessment released at #COP30 shows that local climate action is accelerating faster in CHAMP countries - those that partner with cities.
A new @mayors4climate.bsky.social – @c40cities.bsky.social assessment released at #COP30 shows that local climate action is accelerating faster in CHAMP countries - those that partner with cities.
November 20, 2025 at 1:51 PM
🏙️ CITIES ARE DELIVERING.
A new @mayors4climate.bsky.social – @c40cities.bsky.social assessment released at #COP30 shows that local climate action is accelerating faster in CHAMP countries - those that partner with cities.
A new @mayors4climate.bsky.social – @c40cities.bsky.social assessment released at #COP30 shows that local climate action is accelerating faster in CHAMP countries - those that partner with cities.
❗NEW: a call for cooperative climate action at #COP30
Mayors delivered a crucial message to President @lulaoficialbluesky.bsky.social: the need for a strengthened formal dialogue between national, local, and regional governments to accelerate the delivery of the Paris Agreement.
Mayors delivered a crucial message to President @lulaoficialbluesky.bsky.social: the need for a strengthened formal dialogue between national, local, and regional governments to accelerate the delivery of the Paris Agreement.
November 20, 2025 at 12:54 PM
❗NEW: a call for cooperative climate action at #COP30
Mayors delivered a crucial message to President @lulaoficialbluesky.bsky.social: the need for a strengthened formal dialogue between national, local, and regional governments to accelerate the delivery of the Paris Agreement.
Mayors delivered a crucial message to President @lulaoficialbluesky.bsky.social: the need for a strengthened formal dialogue between national, local, and regional governments to accelerate the delivery of the Paris Agreement.
🔴WATCH LIVE: local leaders conference at #COP30
Mayors and local leaders are the ‘climate doers’: this will not be a ‘COP of Implementation' without them.
📺 Live at 10am BRT/UTC-3:
unfccc.int/event/c40-ci...
Mayors and local leaders are the ‘climate doers’: this will not be a ‘COP of Implementation' without them.
📺 Live at 10am BRT/UTC-3:
unfccc.int/event/c40-ci...
November 20, 2025 at 11:03 AM
🔴WATCH LIVE: local leaders conference at #COP30
Mayors and local leaders are the ‘climate doers’: this will not be a ‘COP of Implementation' without them.
📺 Live at 10am BRT/UTC-3:
unfccc.int/event/c40-ci...
Mayors and local leaders are the ‘climate doers’: this will not be a ‘COP of Implementation' without them.
📺 Live at 10am BRT/UTC-3:
unfccc.int/event/c40-ci...
BREAKING: cities press @lulaoficialbluesky.bsky.social at #COP30 for a formal role in climate decisions
An international coalition submits request for the final text to recognize the role of local governments.
veja.abril.com.br/agenda-verde...
An international coalition submits request for the final text to recognize the role of local governments.
veja.abril.com.br/agenda-verde...
Cidades pressionam Lula na COP30 por espaço formal nas decisões climáticas
Coalizão internacional entrega pedido para que o texto final reconheça o papel de governos locais
veja.abril.com.br
November 19, 2025 at 7:45 PM
BREAKING: cities press @lulaoficialbluesky.bsky.social at #COP30 for a formal role in climate decisions
An international coalition submits request for the final text to recognize the role of local governments.
veja.abril.com.br/agenda-verde...
An international coalition submits request for the final text to recognize the role of local governments.
veja.abril.com.br/agenda-verde...
“Alongside hundreds of millions of city residents on the frontlines of the climate crisis, mayors are dealing with the causes and consequences of climate change every day.
November 19, 2025 at 6:44 PM
“Alongside hundreds of millions of city residents on the frontlines of the climate crisis, mayors are dealing with the causes and consequences of climate change every day.
Cities are on the front lines of the climate crisis - and the solutions. @tainadepaularj.bsky.social, Rio's Deputy Mayor for Climate, and @mark--watts.bsky.social, C40 Cities' Executive Director, discuss how cities are leading the way with collaboration, innovation, and listening to communities.
Rio's Deputy Mayor Explains Why Cities Act Faster Than Governments | The COP30 Sessions at Hi House
YouTube video by Hi House
www.youtube.com
November 19, 2025 at 6:37 PM
Cities are on the front lines of the climate crisis - and the solutions. @tainadepaularj.bsky.social, Rio's Deputy Mayor for Climate, and @mark--watts.bsky.social, C40 Cities' Executive Director, discuss how cities are leading the way with collaboration, innovation, and listening to communities.
It’s crunch time for negotiations at COP30. ⏰
For this to be the ‘COP of Implementation’, cities must be fully recognised as partners for multilevel cooperation.
For this to be the ‘COP of Implementation’, cities must be fully recognised as partners for multilevel cooperation.
November 19, 2025 at 6:10 PM
It’s crunch time for negotiations at COP30. ⏰
For this to be the ‘COP of Implementation’, cities must be fully recognised as partners for multilevel cooperation.
For this to be the ‘COP of Implementation’, cities must be fully recognised as partners for multilevel cooperation.
A better food future is on the menu. 🍎
Through the new C40 Thriving Food Systems Accelerator, cities from São Paulo to Cape Town are building food systems that are healthy, sustainable, and create good green jobs.
Through the new C40 Thriving Food Systems Accelerator, cities from São Paulo to Cape Town are building food systems that are healthy, sustainable, and create good green jobs.
November 19, 2025 at 2:01 PM
A better food future is on the menu. 🍎
Through the new C40 Thriving Food Systems Accelerator, cities from São Paulo to Cape Town are building food systems that are healthy, sustainable, and create good green jobs.
Through the new C40 Thriving Food Systems Accelerator, cities from São Paulo to Cape Town are building food systems that are healthy, sustainable, and create good green jobs.
Cities 1.5 is back with a podcast episode from the flagship gathering of the world’s urban climate leaders, the World Mayors Summit, which took place earlier this month. From London to Amman, hear from mayors about their vision for the future of city climate action: lnk.to/Summit1
November 19, 2025 at 11:33 AM
Cities 1.5 is back with a podcast episode from the flagship gathering of the world’s urban climate leaders, the World Mayors Summit, which took place earlier this month. From London to Amman, hear from mayors about their vision for the future of city climate action: lnk.to/Summit1
Cities around the world are raising the bar on climate action.
By committing to a Yearly Offer of Action, mayors are taking concrete steps to get the world on track to meet the goals of the Paris Agreement.
https://www.c40.org/news/yearly-offer-of-action/
By committing to a Yearly Offer of Action, mayors are taking concrete steps to get the world on track to meet the goals of the Paris Agreement.
https://www.c40.org/news/yearly-offer-of-action/
November 18, 2025 at 5:55 PM
Cities around the world are raising the bar on climate action.
By committing to a Yearly Offer of Action, mayors are taking concrete steps to get the world on track to meet the goals of the Paris Agreement.
https://www.c40.org/news/yearly-offer-of-action/
By committing to a Yearly Offer of Action, mayors are taking concrete steps to get the world on track to meet the goals of the Paris Agreement.
https://www.c40.org/news/yearly-offer-of-action/
🇪🇺At a COP defined by action, Europe is backing the local climate agenda.
The European Union has endorsed #CHAMP, reinforcing that cities & regions are indispensable for delivering the Paris Agreement: https://c40.me/4r6zIwE
@ec.europa.eu | @mayors4climate.bsky.social | @teresaribera.ec.europa.eu
The European Union has endorsed #CHAMP, reinforcing that cities & regions are indispensable for delivering the Paris Agreement: https://c40.me/4r6zIwE
@ec.europa.eu | @mayors4climate.bsky.social | @teresaribera.ec.europa.eu
November 18, 2025 at 12:30 PM
🇪🇺At a COP defined by action, Europe is backing the local climate agenda.
The European Union has endorsed #CHAMP, reinforcing that cities & regions are indispensable for delivering the Paris Agreement: https://c40.me/4r6zIwE
@ec.europa.eu | @mayors4climate.bsky.social | @teresaribera.ec.europa.eu
The European Union has endorsed #CHAMP, reinforcing that cities & regions are indispensable for delivering the Paris Agreement: https://c40.me/4r6zIwE
@ec.europa.eu | @mayors4climate.bsky.social | @teresaribera.ec.europa.eu
“I think this COP must be the ‘COP of cities’, must be the COP of local implementation, and must be the COP of dialogue between national governments and local governments.”
- Mayor Mohamed Sefiani of Chefchaouen, Morocco & GCoM Regional Ambassador, speaking at #COP30
📽️: c40.me/4o27OiU
- Mayor Mohamed Sefiani of Chefchaouen, Morocco & GCoM Regional Ambassador, speaking at #COP30
📽️: c40.me/4o27OiU
November 18, 2025 at 10:44 AM
“I think this COP must be the ‘COP of cities’, must be the COP of local implementation, and must be the COP of dialogue between national governments and local governments.”
- Mayor Mohamed Sefiani of Chefchaouen, Morocco & GCoM Regional Ambassador, speaking at #COP30
📽️: c40.me/4o27OiU
- Mayor Mohamed Sefiani of Chefchaouen, Morocco & GCoM Regional Ambassador, speaking at #COP30
📽️: c40.me/4o27OiU