PRESS RELEASE: Global temperature increases: an alarming scenario for the Baltic Sea

CCB • November 30, 2015

1 December 2015, Uppsala, Sweden

Global temperature increases: an alarming scenario for the Baltic Sea

Prior to the opening of the 2015 UN Conference on Climate Change , Coalition Clean Baltic (CCB) calls for immediate climate change mitigation and adaptation measures in the Baltic Sea Region, based on the findings of a new CCB report released today.

The report presents alarming predicted consequences of temperature increase scenarios on Baltic Sea marine biodiversity. Estimated impact of a 4-degree C increase would represent a catastrophic scenario, resulting in adverse ecosystem changes for the Baltic Sea. Even a 2-degree increase impacts are so serious that policy actions must safeguard that this temperature level is never reached and only a maximum increase of less than 1.5 degrees should be set as acceptable.

Environmental changes in the Baltic Sea

Based on the IPPC indications of 2 to 4 degrees C increases within the period of 2100-2200, the CCB report indicates that human-induced warming will cause drastic changes at all trophic levels and components of the Baltic Sea ecosystem. In addition to increased temperature and sea level, sa­linity is expected to drop and so will the oxygen levels of deep-water areas. As a result, the biodiversity of the Baltic Sea will change and gradually diminish, including loss of important habitats and species, and decreases of many fish stocks. These changes will happen even during a status quo situation, and it is very unlikely that future ecosystems will be able to adapt unaided by human activities.

Policy recommendations

Duly taken, implemented and enforced mitigation measures will reduce the speed of change even though our knowledge of the full role of the ocean in climate is still lacking.

  • Direct climate change mitigation measures primarily include a phasing-out all fossil fuel emissions, and a phasing-in of a 100% renewable energy future with sustainable energy access for all.
  • Indirect climate change adaptation measures should focus a. on further reduction of nutrient losses and recycling of nutrients, regulating fisheries below Maximum Sustainable Yield and preserving a coherent network of Marine Protected Areas.

Baltic Sea countries should jointly take legally binding decisions so that the Baltic Sea region contributes to mitigation of the climate change environmental impacts, both regionally and globally.

The full version of compiled policy recommendations is available on the CCB website.

About Coalition Clean Baltic :

CCB is an environmental NGO network that unites 19 organizations from Belarus, Finland, Russia, Estonia, Latvia, Lithuania, Poland, Germany, Denmark, Ukraine and Sweden and represents over 1% of the Baltic Sea catchment population, as its members. The main goal of CCB is to promote the protection and improvement of the Baltic Sea environment and natural resources. Through its work CCB engages people to become part of the solution instead of part of the problem.

The study was performed with a co-funding provided by EU Life and AirClim Secretariat.

For more information, please contact: Life_logo

Mikhail Durkin, Coalition Clean Baltic,

+46 739 770 793 / mikhail.durkin@ccb.se / www.ccb.se

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.