Coalition Clean Baltic urges Danish authorities to stop the construction of Lynetteholm island

Coalition Clean Baltic • September 26, 2023

Coalition Clean Baltic calls to stop the Lynetteholm project that may result in environmental disaster in the Baltic Sea.

September 2023 - In 2021 the majority of the Danish Parliament adopted a Construction Act which allowed the constructor By & Havn and the Ministry of Transport to start the Lynetteholm project: an artificial peninsula in the Copenhagen harbour as a new district area in the city, that will house 35,000 residents and 35,000 workplaces. This project was approved despite Swedish criticism and without consultation of all the Baltic Sea countries.


In the same year, an Executive Order was introduced, nullifying the environmental laws in place and preventing complains. The only way for citizens, municipalities and associations to be heard is to raise a case in the national courts.


Environmental issues

The construction of this artificial island may block the flow of salt, oxygen-rich water into the Baltic Sea. The result of the Lynetteholm project can have significant, irreversible, negative environmental consequences for the Baltic Sea. Even minimal changes in the water flow into the Baltic Sea may affect the entire marine environment of all the countries around the Baltic Sea.

Regardless of the consultation responses, the ongoing Espoo negotiations with Sweden and the Climate Movement´s lawsuit, the construction of Lynetteholm continues.


Citizens and NGOs actions to stop the project

In 2021, Coalition Clean Baltic (CCB) called to postpone the the adoption of the Lynetteholm project through a letter sent to the Danish authorities, which was also shared with the European Commissioner for the Environment, Oceans and Fisheries , as well as with Directors General of respective DG of the European Commission and the Chair of the Baltic Sea Parliamentary Conference.


In 2022 Coalition Clean Baltic (CCB) signed another letter, together with other 16 NGOs, to complain to the EU about Lynetteholm blocking water flow.


In 2023 updated information were published about the Lynetteholm project. This document  contains the most updated information including those deliberations that have happened namely that:


  • updates about the Danish Climate Movement´s lawsuit;
  • the report of the 'professional reference group’ set by Transport Agency with four independent professors (Prof. Katarina Elofsson, Department of Environmental Science, Aarhus University; Prof. Lone Kørnøv, Department of Planning, Aalborg University; Prof. Stiig Markager, Department of Ecoscience, Aarhus University; Prof. Thorbjørn Joest Andersen, Department of Geosciences and Nature Management, University of Copenhagen) released on 5 March 2023 which states that “blocking effects are cross border and can potentially affect the entire Baltic Sea. One consideration might be to change the design of the project, so that the outermost part does not include Kongedybet”. Individual opinion of Prof. Stiig Markager is i.a. that “the calculations carried out by DHI are not sufficient to reject a significant effect on the salinity in the Baltic Sea. This effect can occur throughout the Baltic Sea and will thus affect all countries around the Baltic Sea. Furthermore, any effect on the stability of the Baltic Sea's water column will produce derivative effects that can accumulate over time and potentially affect salinity beyond the immediate effect on salt transport”. According to Prof. Markager, the implementation of the project in its current state will have significant negative impact on environmental status of the Baltic Sea, hence also constituting a violation of the EU MSFD;
  • the supplemented EIA report for the project changes in the Lynetteholm project was released for public consultation until 8 May 2023;
  • the completion of the Espoo Convention transboundary consultation process is unknown.


In addition, in March 2023 CCB shared its concern to the Helsinki Commission (HELCOM) regarding the Lynetteholm project and submitted documents to the Informal consultation session of the Helsinki Commission (IC HELCOM 1-2023). In June 2023 CCB submitted new documents to the Informal consultation session of the Helsinki Commission (IC HOD 3-2023).


The consultation on the Lynetteholm project by all Baltic Sea countries is a legal duty incumbent on Danish authorities. Until all affected countries and organisations are consulted we call to immediately stop the Lynetteholm project. 

By CCB May 28, 2026
28 May 2026 - Baltic Sea herring stocks and the herring fisheries have in recent years become a central point of contention in Baltic Sea fisheries policy. Member States' approaches to the International Council for the Exploration of the Sea (ICES) recommendations for herring quotas have varied, and the public debate around herring is polarised. At the same time, dialogue between groups of fishers and other stakeholders in different countries has been limited, and not all actors have had a clear picture of each other's perspectives and needs. Within the framework of the Fisheries for the Future project, funded by Ålandsbanken’s Baltic Sea Project, Finnish and Swedish fishers, environmental organisations and researchers gathered last autumn to discuss the status of herring stocks and fishing in the Baltic Sea. Participants gained a better understanding of differences between countries and areas regarding stock status, fisheries management and research. The organisations that took part in the workshop all agree on the need for joint dialogue and wish for the cooperation to continue. “ The project combines research and practical understanding of the herring situation in the Baltic Sea. That makes the initiative particularly important, as the lessons learned can contribute to better decisions and more accurate measures going forward ," notes Crista Hietala, Head of Marketing and Communications at Ålandsbanken and the Baltic Sea Project. During the workshop, a shared understanding emerged of the complexity of the issue, where fishing is one factor but not the only cause of the state of the stocks. The need for a holistic approach was emphasised, in which environmental changes and factors affecting fisheries regulation are considered alongside fishing itself. " Herring stocks are affected by a range of interacting factors – from water quality and salinity to changes in food webs and climate change. At the same time, knowledge about how these factors interact remains limited, which contributes to increased uncertainty in management ," says Aimi Hamberg, Marine Policy Officer at Coalition Clean Baltic. More stable quotas increase predictability The predictability and economic sustainability of fishing can be improved by reducing annual variations in fishing quotas. Multi-annual and more stable quotas would facilitate the planning of fishing operations and better secure the herring's central role in the Baltic Sea ecosystem. The fishing and environmental organisations that participated in the workshop propose that EU member states ask the International Council for the Exploration of the Sea (ICES) to investigate how the quota system can be developed in a more stable and long-term direction, while at the same time ensuring the recovery of sustainable herring stocks. More knowledge about herring spawning areas Workshop participants emphasise that a significantly better knowledge base is needed about herring spawning and nursery areas than what we have today. Updated information on the most important reproduction areas for herring is central to marine spatial planning, for example when siting offshore wind power and other uses of sea areas. Towards ecosystem-based stock assessments During the workshop, it was recommended that herring stock assessments should be based on an ecosystem perspective. ” We believe that stock assessments and advice on fishing quotas need to take greater account of changes in central ecosystem factors, such as predation by seals and cormorants. It is important to expand data collection in order to achieve this ," say representatives of Vi Svenska Fiskare (We Swedish Fishers). As a first step, workshop participants recommend that Finland and Sweden initiate a joint regional project in the Gulf of Bothnia, which can later be extended to other parts of the Baltic Sea. Management areas should be reviewed – dialogue on protected areas needs to continue The workshop highlighted the need to review the division of management areas in the Baltic Sea. Participants propose that the Bothnian Sea and the Bothnian Bay be separated as distinct regulatory areas. This is motivated by genetic differences between the stocks and the fish's migration patterns. In addition, participants consider it important to continue the dialogue on possible protected areas in the Bothnian Sea. Such areas could be introduced as time-limited pilot trials, whose effects are evaluated scientifically. The dialogue on protected areas in the Bothnian Sea has continued between the organisations at a meeting held in February. *** Related documents Read the press release in Swedish and in Finnish . Main outcomes of the workshop in Swedish and Finnish. *** Further information The Fisheries for the Future workshop was a collaborative project between the environmental organisation Coalition Clean Baltic (CCB) and WWF Finland, with funding from Ålandsbanken’s Baltic Sea Project. Among the represented fishing organisations were Suomen Ammattikalastajaliitto/Finlands Yrkesfiskarförbund (Finnish Professional Fishers' Association), Österbottens Fiskarförbund (Ostrobothnia Fishers' Association), Vi Svenska Fiskare (We Swedish Fishers), Kustfiskarna Bottenhavet (Bothnian Sea Coastal Fishers), Ålands fiskare (Åland Fishers) and Sportfiskarna (the Swedish Anglers' Association). Fisheries management was represented by the Government of Åland and the County Administrative Board of Stockholm. In addition, experts from the Natural Resources Institute Finland, the University of Turku and the Swedish University of Agricultural Sciences participated.
By CCB April 30, 2026
Failure to implement EU fisheries law, not gaps in the policy itself, has pushed the Baltic Sea to the brink. Coalition Clean Baltic (CCB) urges immediate action to rebuild Baltic fish populations and restore ecosystems.