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More than 70% of European cities are not adapting to climate change in a consistent and coherent way.

That is the headline finding of our new study, published in Nature Climate Change, on how European cities are – or are not – preparing for a warming world.

We find that nearly half of the 327 cities that we assess have not published an adaptation plan, leaving us unsure as to whether or how they are trying to reduce climate threats.

For the 167 cities that do have adaptation plans – ranging from Alborg and Aarhus in Denmark through to Zilona Gorá in Poland and Zaragoza in Spain – we find that the climate-related measures within them are often inconsistent.

In other words, their climate risk assessments, policy goals, adaptation measures and monitoring programmes are not aligned.

For example, 81 plans identified the increased risk of storms and winds from climate change, but only 23 of these plans (28%) mentioned increasing resilience to such severe weather events as a specific policy goal.

These inconsistencies contribute to a “gap” that the UN has identified between the adaptation goals that societies have adopted and the measures they have implemented to try and meet them.

Our study finds that Nuremberg in Germany has the largest gap in its adaptation plan, with Stuttgart and Schwerin in Germany and Birmingham in the UK close behind. 

The gap is particularly alarming because Europe is warming twice as fast as any other continent – and it is a continent that has had considerable financial and institutional support for adaptation for decades.

Consistent and coherent

Much of the existing research into the “adaptation gap” focuses on the difference between the climate measures a city needs and what action has actually been taken.

But there is another key part of the adaptation gap – whether the policies and measures are actually internally consistent.

Ideally, we would expect adaptation efforts to be “joined-up” along the policy chain.

For example, where climate risk assessments suggest that a city faces specific threats from storms, flash flooding, heatwaves, forest fires or drought, these vulnerabilities should be linked directly to the municipality’s adaptation goals, policies and the monitoring and evaluation processes.

Additionally, we might hope that city governments would involve those at risk from severe climate impacts, such as vulnerable population groups, industries and sectors of the economy, in decisions as to how they will be protected.

If these different phases of adaptation management are misaligned and inconsistent, we can see how cities and societies are less likely to deal with the impact of severe weather events effectively.

‘Consistency checks’

We developed a series of “consistency checks” to identify the extent to which different stages of the adaptation management process are aligned.

These include:

  1. Consistency between hazards identified in a risk assessment and a city’s adaptation goals.
  2. Consistency between the risks to specific sectors and detailed policy measures.
  3. Consistency between the risks faced by vulnerable groups and detailed policy measures.
  4. Consistency between the policy measures targeted at vulnerable groups and monitoring and evaluation processes to ensure they are being implemented.
  5. Consistency between the risks faced by vulnerable groups and their involvement in decision-making.

We use these checks to assess the adaptation strategies of European cities. For this, we use an existing dataset of the local adaptation plans of more than 300 cities.

(The dataset covers the 27 member countries of the EU, plus the UK. It aims to cover around 20% of the population of each country and include national and regional capitals where possible. In general, it covers large cities with more than 250,000 people and medium-size urban areas with more than 50,000 people.)

We find that nearly half (49%) of the plans do align climate risks with climate goals. Slightly more than half (52%) align identified sectoral risks with respective measures, but only regarding specific economic sectors and industries.

For example, 68 cities (77%) identify particular risks for buildings, while 70 cities (80%) highlight risks to the water industry and include details of measures to protect these sectors.

However, identified risks for vulnerable groups, such as risks for older people, those on low-incomes and ethnic minorities, were only followed-up with consistent measures in 43% of the plans.

Also, only 4% of cities consider or involve vulnerable groups in monitoring and evaluation (if they identified these groups at risk) – and only 1% of cities were effectively engaging vulnerable communities in plan development.

Given that the least powerful members of society are often the most vulnerable to climate change, there is a real risk that they will be further exposed to severe weather events.

Overall, when assessing each of the five consistency checks in all 167 plans, we find inconsistencies in more than two-thirds (70%). This is despite the fact that adaptation planning in Europe has improved over time – as we highlighted in a previous Carbon Brief article.

The findings are illustrated in the map below, which shows the 167 cities with adaptation plans. The coloured dots indicate the extent to which each city’s plan is inconsistent (indicating a potential adaptation gap) – taken as an average across the five checks set out in our study.

Green dots indicate plans that are fully consistent, with a sliding scale of inconsistency through yellow, orange and red. The maximum inconsistency identified in the study is an adaptation gap of 79.6% – found in Nuremberg, Germany. But Stuttgart and Schwerin in Germany and Birmingham in the UK are close behind, with an average “gap” score of more than 78%.

Map showing average consistency per adaptation plan and city. Full consistency is shown by the green dots. Degrees of inconsistency are shown in shades from green to red, with a maximum inconsistency of 79.6%, the highest score across individual cities. Source: Reckien et al. (2025)
Map showing average consistency per adaptation plan and city. Full consistency is shown by the green dots. Degrees of inconsistency are shown in shades from green to red, with a maximum inconsistency of 79.6%, the highest score across individual cities. Source: Reckien et al. (2025).

Lack of adaptation plans

Significantly, our research finds that only 167 of the 327 cities – just over half of those in the database – had even produced a climate adaptation plan by the study’s cut-off date of December 2020.

As such, we were unable to assess how a huge number of places across Europe are planning to deal with climate threats – regardless of whether their activities are misaligned or not.

(Although many cities will have published adaptation plans since this date, it is not clear how coherent their activities are likely to be, nor whether they take sufficient account of the needs of vulnerable groups.)

Overall, our research suggests a greater need for city and national governments to base their adaptation policies on robust risk assessments and to monitor progress accordingly – particularly with the most vulnerable social groups in society in mind.

Our findings highlight the importance of focusing on those who are most vulnerable to climate change, by involving them in decision-making and targeting specific measures at these groups.

The post Guest post: More than 70% of adaptation plans for European cities are ‘inconsistent’ appeared first on Carbon Brief.

Guest post: More than 70% of adaptation plans for European cities are ‘inconsistent’

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Climate Change

COP17: Key outcomes agreed at the UN biodiversity conference in Yerevan

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Countries have completed the first “global review” of their progress towards reversing nature loss by 2030 at the COP17 biodiversity talks in Yerevan, Armenia.

The review “notes with deep concern” that, unless action is “rapidly accelerated”, the goal to reverse nature loss and meet a set of 23 targets by 2030 “will not be achieved”.

It “urges” countries to accelerate action, including by “increased ambition in addressing the gaps”.

Much of the discussions in Yerevan focused on how to raise the necessary funds to help developing countries protect nature.

Some major economies pushed to expand the range of nations that are expected to provide finance, with countries agreeing at the end of the two weeks of talks that non-donors that want to contribute can “signal interest” before COP18.

This came after developed countries failed to meet a target to significantly ramp up nature finance over the last few years.

It also came as a landmark fund agreed at COP16 in Colombia to pay communities for the genetic resources derived from nature stands nearly empty two years on.

The Yerevan talks marked the halfway point of the “Kunming-Montreal Global Biodiversity Framework” (GBF), the “Paris Agreement for nature” first made in 2022 and due to be achieved by 2030.

During the nearly 12-hour-long final plenary, countries voted for Quito, Ecuador, to host the COP18 nature talks, which will be held in 2028.

Countries managed to sign off on all the major negotiation texts, marking a stark contrast to COP16, which ran so far over time that the Colombian presidency lost “quorum”, forcing talks to resume in Rome months later. 

Below, Carbon Brief has detailed analysis of all of the key outcomes from COP17.

Formal negotiations

Finance

Finance, predictably, was at the heart of the discord and deadlock at the Yerevan talks.

At COP17, discussions on finance had to achieve several outcomes.

The first part – to take stock of biodiversity finance mobilised so far to meet the nature deal’s goals – fell under the global review.

As the global report noted, developed countries failed to meet their commitments to raise “at least $20bn a year by 2025” for nature. Delegates pointed to falling aid levels and a sharp 27% decline in environmental funding for the 2026-30 period.

The second part was to agree on how to mobilise resources for the next four years, to meet the GBF’s goals and targets.

Calls to “broaden the contributor base” of who pays to protect nature – and whether that should include emerging economies – became the most fraught element of the talks.

Eventually, countries agreed on what Switzerland described as a “super, mega-delicate” text. It hinged on major “political compromises”, with “no major winner or loser”, according to Kenya. 

Per the decision, countries that want to be included on a list of developed country donors can “signal interest” through bilateral, confidential consultations before COP18 and every alternate COP after.

Finally, countries also agreed on criteria to shape and resource a new, permanent financial mechanism to protect nature after 2030.

However, this did not immediately take the form of a new fund under the COP that biodiverse countries have demanded since 2022, deferring the mechanism’s institutional structure to COP18.

Resource mobilisation discussions at the GBF’s halfway mark were supposed to agree on how to close the “biodiversity finance gap” and to “increase resources from all sources” to “at least” $200bn per year by 2030, as set out in target 19 of the GBF.

The talks were largely dominated by a push, led by the JUSCANZ bloc of developed countries, to “broaden the contributor base”. This could see emerging economies, such as Qatar, China, Saudi Arabia and India, being added to the list of countries that pay to protect nature.

BlueSky post by Aruna Chandrasekhar (@arunacsekhar.bsky.social): "COP17 was supposed to be a nature finance stocktake, ramping contributions to "at least $30bn/yr" and sketching the bones of post-2030 nature funding. "Broadening the contributor base" was an outlier, appearing exactly once in the COP16 decision. Now it's the headliner."

Article 20 of the UN Convention on Biological Diversity (CBD) states that developed countries “shall provide new and additional financial resources” to developing countries to meet the costs of implementing measures to protect nature. 

The second paragraph of Article 20 of the UN biodiversity convention. The text says: "The developed country Parties shall provide new and additional financial resources to enable developing country Parties to meet the agreed full incremental costs to them of implementing measures which fulfil the obligations of this Convention and to benefit from its provisions and which costs are agreed between a developing country Party and the institutional structure referred to in Article 21, in accordance with policy, strategy, programme priorities and eligibility criteria and an indicative list of incremental costs established by the Conference of the Parties. Other Parties, including countries undergoing the process of transition to a market economy, may voluntarily assume the obligations of the developed country Parties. For the purpose of this Article, the Conference of the Parties, shall at its first meeting establish a list of developed country Parties and other Parties which voluntarily assume the obligations of the developed country Parties. The Conference of the Parties shall periodically review and if necessary amend the list. Contributions from other countries and sources on a voluntary basis would also be encouraged. The implementation of these commitments shall take into account the need for adequacy, predictability and timely flow of funds and the importance of burden-sharing among the contributing Parties included in the list."
The second paragraph of Article 20 of the UN biodiversity convention. Source: UN CBD

The text states that other countries – including emerging economies – may “voluntarily assume” these obligations to pay. However, it adds that this list of developed countries “shall” be reviewed periodically and amended “if necessary”.

The list was last amended in 2006.

(See this “jargon buster” which explains the specific meaning and legal weight of various terms and verbs used in UN formal documents.)

Discussions around this fraught subject had reached a dead end at intersessional talks this year, but resurfaced in Yerevan.

The first “non-paper” had four different options for expanding the contributor base. These ranged from using the World Bank’s country income groups “as a proxy” to identify high-income countries, to commissioning a study on the impacts of being included on the list.

By 21 October, the number of options swelled to eight, including two from Saudi Arabia and one from Peru.

Some countries “expressed concern” that certain options were based on a CBD secretariat study on “what constitutes a developed country”, Earth Negotiations Bulletin reported.

By the end of the first week, it was clear that the finance deadlock would have to go into informal ministerial consultations for any consensus to emerge.

At a press conference on 28 October, Christopher O’Sullivan, Ireland’s nature minister and representing the EU delegation, told Carbon Brief:

“Our position isn’t that we want to pull back in terms of contributing…but it’s been 20 years since that list was added to, times have changed and there are new realities. We just simply want those new realities reflected. I don’t fully understand why there’s so much opposition to that.”

The EU chose not to comment on which countries it would like to see on that list.

Lim Li Ching from the Third World Network, meanwhile, called the push for others to “assume the obligations” of developed countries “sheer hypocrisy”, adding that any country could make a voluntary contribution. She told Carbon Brief:

“At a forum like the CBD, this linking of income status with finance does not take into account where historical and current responsibilities lie. If you want to generate more funding for biodiversity, let’s look at sovereign debt burdens and rules, which are inequitable for developing countries. But if you can fund wars, and provide resources for your defence industry, then you know where the priorities are.”

On 29 October – at a plenary meant to adopt final texts for the most contentious subjects – Norway’s Gaute Hanssen announced that resource-mobilisation discussions would go into a smaller “friends of the chair” meeting.

Facilitated by Carolina Caceres from Canada and Imèn Meliane from Tunisia, the meeting would discuss the most contentious elements of a draft decision that had swelled to 112 brackets, denoting areas of disagreement on specific details in the text.

While the meeting was open to all, countries that were called to be present included Brazil, Canada, Chile, China, the EU, Fiji, Norway, Russia, Switzerland, Saudi Arabia, South Africa and the UK.

At the same time, a “non-paper” text by finance and environment ministers laid out countries’ red lines and compromises.

A key paragraphs from a minister’s non-paper on nature finance published on 29 October. The text says: "Operative paragraphs (the following paragraphs would replace options A-H in the CRP) 1. Emphasizes the importance of accelerating the implementation of the strategy for resource mobilization for the period 2025–2030; 2. Invites Parties not on the list of developed country Parties and other Parties that may voluntarily assume the obligations of the developed country Parties as adopted in Decision VIII/18, in accordance with paragraph 2 of Article 20 of the Convention, to indicate to the Secretariat their interest in being included in the corresponding list established in accordance with that Article and invites Parties to provide their views on improving the modalities and timing of such invitations;"
A key paragraphs from a minister’s non-paper on nature finance published on 29 October. Source: UN CBD

At the end of COP17, countries welcomed a final compromise text, with Kenya thanking the “strong women” co-chairs who strove to strike a “delicate” balance.

China, Saudi Arabia, Switzerland and Fiji cautioned against any further interventions, with Brazil warning: “If we open this text, we will never close it again.”

While the final decision “recognises” that “contributions from more parties would improve the mobilisation” of biodiversity finance, it steered away from issuing criteria to expand the list of donor countries.

The text makes it clear that no additions to the list would be made without inviting and confidentially consulting with interested countries, to secure their explicit consent.

Instead, the CBD secretariat “invites” countries keen to be on the list and “assume the obligations” of developed countries to “signal interest” before COP18 and at every alternate COP thereafter.

At the same time, developing countries can contribute to meeting the GBF and biodiversity convention’s goals on a “voluntary basis”, with contributions not implying inclusion on the list.

A negotiator for China told Carbon Brief at the closing plenary:

“We welcome this balanced document. It was a very long discussion that has gone [on] since [2022 nature talks in] Nairobi. But actually this time, there were a lot of sensitive issues, [there were] a lot of critical things we didn’t open in the contact groups; it mainly went to the high-level discussion.”

The decision also establishes a financial mechanism for nature funding after 2030 under the governance of the COP, a key ask from developing countries.