About Anne-Charlotte Costabadie

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So far Anne-Charlotte Costabadie has created 30 blog entries.

What are ‘negative emissions’ and what do they mean for cities?

2026-06-18T16:31:16+02:00June 18th, 2026|

Cities are trying to rapidly reduce their greenhouse gas emissions and reach net zero, but why ‘net’ zero? This is where negative emissions come in. Paul Barton from NetZeroCities’ partner ICLEI Europe explains how critical these are for cities’ climate neutrality goals. A less considered part of the terms “net zero” and “climate neutral” is that they imply that some carbon emissions can’t be mitigated by 2030. These leftover or “residual” emissions therefore need to be cancelled out through actions that remove carbon from the atmosphere. Why do cities need negative emissions? The removal and storage [...]

Facilitate the Community of Practice of Cities in the Republic of Slovenia

2026-06-15T11:40:51+02:00June 15th, 2026|

Deadline: 07 July 2026 (23:59 CEST Time) Background NetZeroCities, through Special Grant Agreement 2 (SGA2) Task 1.6, ‘Sub-European Peer-to-Peer Collaboration’, is actively working to provide tailored support in various national contexts. The aim is to provide additional support to cities, foster communities of practice between cities in each country, i.e. to strengthen city-to-city collaboration spaces at national level and thus help to reinforce national platforms. To achieve this, NZC has developed a country-specific support framework tailored to the unique characteristics and needs of each context. In the Republic of Slovenia, cities Kranj, Ljubljana and Velenje are participating in the EU [...]

Cities Mission Times 2026: Delivering Europe’s Urban Climate Transition

2026-06-09T11:06:29+02:00June 9th, 2026|

At the recent Cities Mission Conference 2026, held in Torino from 27-29 May, attendees received the "Cities Mission Times," a newspaper dedicated to delivering Europe's urban climate transition and celebrating city progress on the road to climate neutrality. Packed with city stories, case studies, and expert insights, it reflects the scale and ambition of Europe's urban climate transition in action. Inside, readers will discover local climate initiatives and citizen engagement stories, alongside features on finance, private sector action, smart cities, energy, multilevel governance, peer learning, and cities' own approaches to climate communication. Didn’t get your copy? You can still browse [...]

Podcast – When citizens lead in cities – engaging local people in local climate action, with Nantes Métropole and Guimarães

2026-05-26T11:54:53+02:00May 26th, 2026|

Host: Sean Errey  |  Produced by NetZeroCities Episode summary  What does it actually take to bring an entire city on board with climate action? In the first episode of Path to Zero: City Stories, host Sean Errey explores one of the most critical drivers of climate progress: citizen engagement. Drawing on the experiences of Guimarães in Portugal and Nantes Métropole in France, this episode reveals how meaningful involvement goes far beyond ticking boxes, from Citizens’ Assemblies to multi-month group challenges.  Carlos Ribeiro of Guimarães' Landscape Lab shares how a 2013 environmental diagnosis exposed a deep disconnection between citizens and nature, sparking a decade-long journey of co-creation and trust-building. Elise [...]

Design and Operationalisation of a Municipal Climate Fund for the City of Aachen

2026-05-19T17:24:43+02:00May 19th, 2026|

Deadline: 09 June 2026 (23:59 CEST Time) Background In March 2024, the city of Aachen submitted its Climate City Contract (CCC) with a total of 134 commitments from the urban community actors. In October 2024, Aachen's CCC was awarded the EU Mission Label. This important milestone marked the beginning of the collaboration with the Climate City Capital Hub (The Hub)1 within NetZeroCities (NZC) and the finance experts responsible for Aachen. In October 2024, the Capital Hub kick-off took place in Aachen with the Aachen Transition Team, representatives from the NZC consortium and European Investment Bank (EIB). The Hub’s support services [...]

Seeking expertise to develop the prototypical concept design and implementation guidelines for Glasgow’s Community Renewable Energy Framework (CREF)

2026-05-18T10:58:33+02:00April 21st, 2026|

New deadline: 14 May 2026 (23:59 CEST Time) Background The City of Glasgow is implementing a Community Renewable Energy Framework (CREF), aimed at increasing the footprint of community-owned renewables in the city. The framework seeks to support communities as they implement community renewable energy projects from initial proposals to delivery, including consideration of persistent challenges that these projects encounter, such as finding suitable land, financing, connections, and navigating the planning process. Glasgow describes the Community Renewable Energy Framework as follows in the Climate City Contract: “This initiative aims to support increased generation of energy from renewable sources by identifying a [...]

Seeking expertise for organising National Mission Ecosystem events in Greece

2026-05-06T11:23:29+02:00April 20th, 2026|

Deadline: 18 May 2026 (23:59 CEST Time) The proposal submission deadline has been extended and a list of Q&As is attached to the RFP document. Background NetZeroCities, through SGA2 Task 1.6, ‘Sub-European Peer-to-Peer Collaboration’, is actively working to provide tailored support in various national contexts. The aim is to provide additional support to cities, foster communities of practice between cities in each nation, i.e. to strengthen city-to-city collaboration spaces at national level and thus help to reinforce national ecosystems. To achieve this, NetZeroCities has developed a country-specific support framework tailored to the unique characteristics and needs of each context. In [...]

A problem shared is a problem halved: strengthening French local authorities through cooperation on climate

2026-04-15T17:42:43+02:00April 15th, 2026|

Collaboration promises to pool resources and spread expertise – but first everyone has to be put in the same room. The EU Cities Mission is doing just that and bringing cities, national governments and other important sectors together in a regular and shared forum. Ahead of recent municipal elections, it was the turn of the French ‘ecosystem’ to meet on key topics of finance and governance. By Marion Gonzales Offering collaborative spaces to tackle shared challenges is one of the key value propositions of the EU Cities Mission – and financing climate action is a hot [...]

Expert support to facilitate the Community of Practice of cities in the Czech Republic

2026-02-18T09:53:28+01:00January 27th, 2026|

Deadline: 27 February 2026 Please note that the deadline for submitting bids has changed and a list of questions and answers are published at the bottom of the RFP in the downloaded PDF file Background NetZeroCities is actively working to provide tailored support in various national contexts. The aim is to provide additional support to cities, foster communities of practice between cities in each country, i.e. to strengthen city-to-city collaboration spaces at national level and thus help to reinforce national platforms. To achieve this, NetZeroCities has developed a country-specific support framework tailored to the unique characteristics and needs of each [...]

‘All cities are frontrunners for the climate transition’: how leading cities are taking others with them towards sustainability

2025-12-15T12:21:22+01:00December 15th, 2025|

Author: Alan MacKenzie Over 100 cities are racing to reach climate neutrality as part of the EU Cities Mission – but their work stretches much further in pursuit of a critical second goal. Keen to share its experience, Mannheim recently hosted delegates from ambitious cities and regions who were equally keen to learn from them on energy and engagement. In a plain, glass-walled conference room, a dozen people watch politely but attentively as the speaker explains detailed PowerPoint slides, describing his city’s actions in a modest, ordinary tone – even though the content is, for [...]

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