CCB position on gas leaks from Nord Stream 1 and 2
CCB • September 30, 2022
The gas leak at Nord Stream 2 seen from the Danish F-16 interceptor on Bornholm. Photo: Danish Defence
Coalition Clean Baltic expresses serious concerns regarding factual massive release of greenhouse gas and other possible environmental consequences of the natural gas leakages that were detected by Danish and Swedish authorities from the Nord Stream 1 and 2 pipelines on 27-28 September 2022.
With the information available at this point and risk assessment from EIA Reports of both pipelines, presented under the Espoo Convention consultations, the full volume of gas, being contained in the damaged pipelines may be released into marine environment and atmosphere.
In the worst case scenario, given pipeline dimensions in the project description (internal diameter 1,153 mm, length 1,220 km) the volume of one pipeline can be calculated as 1.27 million m3. At the settle out pressure of 165 bar, there will be the equivalent of 210 million m3 (at atmospheric pressure) or around 148,000 tons of gas in one enclosed pipeline. According to the EIA, the consequent environmental impacts can occur following the release of gas:
- Emission of greenhouse gases to the atmosphere:
Methane, equivalent to the release of 3.7 million tons of CO2 in terms of climate change potential - Impacts on water quality:
Natural gas exhibits negligible solubility in water, and thus has little effect on water quality in the event of an underwater leak. The gas will rise to the water surface, from where it will be released into the atmosphere; the extent to which it dissipates depends on meteorological conditions and the weight of the gas in relation to the surrounding air. A short thermal impact (temperature drop to negative value caused by gas expansion, or Joule Thomson effect) may occur in the surrounding water. Another possible impact on water quality from an accidental pipeline rupture and gas release is a possible updraft of bottom water. This could cause bottom water to be mixed with surface water, with an impact on salinity, temperature and oxygen conditions. - Impacts on fish, marine mammals and birds:
All marine organisms (benthic fauna, fish, marine mammals and birds) within the gas plume or the subsequent gas cloud will die or flee from the influenced area, which subsequently could impact the designation basis of protected areas (including Natura 2000 sites). The impact will be of limited time and space.
Besides the expert assessment of higher than estimated in EIA climate impacts (up to 14.3 million tons of CO2-equivalent over a 100-year timeframe), the identified leaks are located in or near the only cod spawning area we have in the Eastern Baltic Sea. Hence the event can cause considerable harm/mortality to the young fish recently born in the area, as well as physical and physiological damage (incl. gas bubble disease), spatial disturbance, etc. To monitor the environmental consequences of this unprecedented situation, all EU Member States being HELCOM Contracting Parties in the area should swiftly deploy instruments to measure the status in relation to e.g. salinity, oxygen and pH. Such equipment could be placed around the perimeter of the incident areas to measure if methane leak has further away effects.
Model prepared by Sabine Eckhardt, NILU.
We also herewith inquire that a transparent information process should be established by respective EU Member States being HELCOM Contracting Parties to keep the public aware of environmental impacts of the accident and their implications for future environmental efforts as well as their consequences on climate and health of the Baltic Sea. Respective HELCOM subsidiary bodies, i.e. STATE & CONSERVATION, RESPONSE and PRESSURE should be involved.
NOTES
- Full letter sent to HELCOM on 29 September 2022
- Media release: ICOS measurements show huge methane peaks in the atmosphere after Nord Stream leak (30 September 2022)
- Danish Energystyrelsen PR (28 September 2022)
- Reuters' article (26 September 2022)
- CCB Save Kurgalskiy campaign: https://www.ccb.se/save-kurgalskiy
- Espoo Report on Nord Stream 2 ( April 2017)
- Environmental Study: Pipeline System on the Swedish Continental Shelf Nord Stream AG – (October 2008)
Uppsala, 31 August 2026 - Coalition Clean Baltic (CCB) welcomes the Commission’s recognition that declining fishing pressure has not consistently delivered higher biomass, that recruitment and biomass are deteriorating for a number of stocks, and that Baltic fisheries urgently need rebuilding trajectories. These findings must now shape the Council’s decision on the 2027 fishing opportunities and the Commission’s position during the Council negotiations. The poor status and decline of many Baltic Sea fish populations have been documented over several decades and show that the ecosystem is in severe distress. Cumulative human pressures have contributed to major ecosystem shifts, and at the same time climate change is making the shallow, semi-enclosed Baltic Sea warmer and less saline. These combined pressures affect not only fish biomass but also recruitment, population age and size structures, species interactions and the functioning of the wider food web. The Baltic crisis reflects the persistent failure to fully implement the CFP and the Baltic MAP, including their precautionary safeguards and the legal obligation to apply ecosystem-based fisheries management. Fishing opportunities for 2027 must therefore mark the first concrete step towards ambitious, timebound rebuilding trajectories that reduce fishing pressure and enable depleted populations to recover to healthy levels. These trajectories must include implementation of an ecosystem based approach by accounting for species interactions, food-web needs, habitat conditions, environmental and climatic change and scientific uncertainty, while reinforcing, not replacing the CFP’s objectives and the Baltic MAP’s existing safeguards in Art. 4.6. The Commission’s 2027 proposal is now before the Council. The October Council must turn the commitment to rebuild Baltic fish populations into measurable action by adopting fishing opportunities that deliver rapid and sustained recovery. Under no circumstances should the TACs adopted be higher than levels proposed by the European Commission. Fishing opportunities aligned with scientific evidence, legal safeguards and ecosystem needs are the basis for both a recovering Baltic Sea and viable fisheries in the long term. Read the full CCB's submission and recommendations here .
25 August 2026 - Following yesterday’s European Commission proposal for 2027 Baltic Sea fishing opportunities , environmental and angling organisations call on EU fisheries ministers not to treat the early signs of recovery for some Baltic Sea fish populations as a licence for steep quota increases. The latest scientific assessment on central Baltic herring shows some encouraging signs of improvement. This is welcome, but the changes are recent and do not mean that the population has fully recovered. An increase in biomass alone does not demonstrate that fish populations are healthy and resilient or justify higher catch limits. Fishing limits for small pelagic fish in the Baltic Sea have been set too high for years; last year’s Agriculture and Fisheries Council’s (AGRIFISH) decisions provide a recent example [1]. Herring proposals support recovery, but sprat’s wider ecosystem role must not be overlooked NGOs support the Commission’s proposed 2027 catch limit of 143,860 tonnes for central Baltic herring. Although 49% higher than last year, the proposal reflects the population’s recent growth, whilst also increasing the chances of the still fragile population to continue rebuilding. NGOs also cautiously welcome the proposed catch limit of 57,308 tonnes for Bothnian herring, a 3% increase, and the retention of the three- month spawning closure. Nevertheless, the population remains vulnerable and continues to be below healthy levels according to scientific advice [2]. An even more cautious fishing level would be needed in order to restore the population to the required healthy level. NGOs therefore strongly recommend a lower Total Allowable Catch (TAC) of 45,544 tonnes. For sprat, the proposed catch limit of 291,590 tonnes and proposed removal of the spawning closure do not sufficiently account for the observed and documented misreporting issues, or for species’ vital role in the wider Baltic Sea ecosystem. “The Commission has taken a careful approach to herring, and the same is needed for sprat. Sprat may be small, but they play a vital role in the Baltic Sea as key prey for cod, salmon and seabirds. Fisheries ministers should set a lower catch limit that leaves enough sprat in the sea to help the fragile Baltic Sea ecosystem recover,” says Cathrine Pedersen Schirmer, Senior Fisheries Policy Advisor, Coalition Clean Baltic. Cod remains in crisis Scientists continue to advise zero catch for both eastern and western Baltic cod in 2027, a reminder of how depleted these populations remain. NGOs welcome the Commission's proposal to reduce cod bycatch quotas by 51% (to 211 tonnes) for eastern Baltic cod and by 88% (to 31 tonnes) for western Baltic cod, and to maintain the current conservation measures. However, to increase the chances for recovery for Baltic cod populations, EU decision makers must walk the talk. New legal obligations require the use of fishing gear in flatfish fisheries designed to avoid accidental catches of cod. With this gear now mandatory, cod bycatch quotas should be reduced and set as close as possible to the advised zero catch. For plaice, the Commission proposes to keep the same fishing opportunity as in 2026. However, cod is also caught as bycatch in the plaice fishery. NGOs therefore urge ministers to keep the plaice quota at a lower level, no higher than 1,593 tonnes for 2027, to help reduce accidental cod catches. "Fishing opportunities for 2027 should reflect the objectives of the Nature Restoration Regulation. As Member States prepare their national restoration plans, fishing limits must help rebuild fish populations and support the recovery of resilient marine ecosystems. Overfishing and neglecting an ecosystem-based approach would undermine restoration efforts," says Justyna Zajchowska, Fisheries Lead for WWF Baltic Sea Programme. E ncouraging salmon returns do not show recovery across all rivers Salmon returns to several large rivers in Sweden and Finland have been encouraging in 2026 [3]. However, several smaller northern Swedish populations remain at critically low levels, and the effects of the three previous poor years are expected to persist. The regional picture therefore remains uneven. NGOs welcome the Commission’s proposal not to increase fishing opportunities for Baltic salmon. However, for both the Main Basin salmon and the Gulf of Finland salmon, fishing should only take place on compensatory released salmon or salmon from rivers where stocks are at full reproductive capacity. “Good returns to the Torne and several other large rivers are welcome, but Baltic salmon cannot be judged by a few rivers alone. Many smaller populations remain at critical levels, and there is no room to increase fishing pressure on wild salmon,” says Thomas Johansson, Chairman, Östersjölaxälvar i Samverkan, and Secretary General, Baltic Salmon Fund. Fisheries ministers must turn promises into action for a real recovery of the Baltic Sea When agreeing the Baltic Sea fishing opportunities for 2027 in October, EU fisheries ministers must apply a precautionary and ecosystem-based approach and: Follow the Commission’s proposal on fishing opportunities for: Central Baltic herring, Western Baltic herring, Eastern Baltic cod, Western Baltic cod; Set lower, more precautionary and ecosystem-based fishing opportunities for: sprat, Bothnian herring, Gulf of Riga herring, plaice, Main Basin salmon, Gulf of Finland salmon; Under no circumstances set fishing opportunities for Bothnian herring higher than the Commission’s proposal. A higher level of fishing would lead to a decrease in stock size; Honour the October AGRIFISH 2025 commitment by agreeing to a clear timetable for ambitious, time-bound rebuilding plans for every depleted Baltic Sea fish population, based on rebuilding trajectories that restore populations to healthy levels as quickly as possible; and Ensure that Baltic Sea fishing opportunities are aligned with EU nature restoration objectives, so that public and private work and investments in marine restoration are not undermined by continued overfishing, insufficient rebuilding measures and lack of implementation of ecosystem-based fisheries management. In October 2025, the Commission and the eight Baltic EU Member States agreed [4] on the urgent need to rebuild Baltic Sea fish populations. The 2027 fishing-opportunities decision is the first real test of that commitment. Some improvements in Central Baltic herring and sprat show that recovery is possible ministers must now adopt fishing limits that secure that progress in the long term and give every depleted Baltic Sea fish population a credible chance to recover. - ENDS The full press release is available in PDF here . Extra info For the full joint NGO recommendations on Baltic Sea fishing opportunities for 2027, please see: https://www.ccb.se/joint-ngo-recommendations-on-baltic-sea-fishing-opportunities-for-2027 Central Baltic herring remains below the level at which rebuilding measures should begin. The International Council for the Exploration of the Sea (ICES) expects the population to move only slightly above that level in 2027. Even then, fishing at the rate associated with maximum sustainable yield would leave a 36% probability of it falling below the threshold again in 2028 [5]. ICES also warns that the stock contains genetically distinct spawning groups and is therefore vulnerable to losses in genetic diversity and overall productivity [6]. The sprat population has grown and is now above key biomass reference points. However, fishing pressure is already at the level associated with maximum sustainable yield. ICES cautions that persistent misreporting of herring and sprat adds uncertainty to its assessment and advice [7]. Sprat is an important food source for cod, salmon and other marine wildlife [8], while ICES reports that industrial sprat fisheries can include substantial catches of herring [9]. Higher fishing pressure on sprat could therefore affect vulnerable herring populations as well as species that depend on sprat for food. Media contacts Beatrice Rindevall , Chairperson, Swedish Society for Nature Conservation, ordforande@naturskyddsforeningen.se Cathrine Pedersen Schirmer , Senior Fisheries Policy Advisor, Coalition Clean Baltic, Cathrine@ccb.se Justyna Zajchowska , Fisheries Lead, WWF Baltic Sea Programme, jzajchowska@wwf.pl Joonas Plaan , Board member, Marine and Climate programme, Estonian Fund for Nature, joonas.plaan@elfond.ee Dr. Katja Hockun , Senior Expert Meeresschutz, Deutsche Umwelthilfe e.V., hockun@duh.de Konrad Stralka , Executive Director, BalticWaters, konrad.stralka@balticwaters.org Magda Jentgena , Baltic Sea and Freshwater Programme Manager, Pasaules Dabas Fonds, mjentgena@pdf.lv Regan McEnroe , Chairperson, Nature and Youth Sweden, ordforande@faltbiologerna.se Tapani Veistola , Executive Director, Suomen luonnonsuojeluliitto (Finnish Association for Nature Conservation), tapani.veistola@sll.fi Thomas Johansson , Chairman, Östersjölaxälvar i Samverkan, and Secretary General, Baltic Salmon Fund, thomas@balticsalmonfund.com *** Notes [1] See joint NGO press release on the outcome: https://www.ccb.se/fisheries-ministers-risk-breaking-eu-law-jeopardising-baltic-sea-recovery [2] ICES (2026). Herring (Clupea harengus) in Subdivisions 30 and 31 (Gulf of Bothnia). ICES Advice: Recurrent Advice. Report. https://doi.org/10.17895/ices.advice.30932087.v1 [3] Finnish monitoring of salmon returns: https://luonnonvaratieto.luke.fi/numerotieto/raportit?panel=nousulohiseuranta&inits=REGION_ID%3D3&lang=en&state=REGION%3D3%3BREPORT%3Dfi%3Asalmon_run_monitoring%2F89%3BYEAR%3D2026 [4] Council of the European Union (2025), Draft minutes of the Agriculture and Fisheries Council , 27–28 October 2025, document 14646/25, p. 13, joint statement on the urgent need for rebuilding fisheries in the Baltic Sea. [5] ICES, Herring in subdivisions 25–29 and 32, excluding the Gulf of Riga, pp. 1–2. The stock is currently below MSY Btrigger; projected biomass for 2027 is only 5% above it. Under the FMSY scenario, ICES estimates a 36% probability of biomass being below MSY Btrigger in 2028. https://ices-library.figshare.com/articles/report/Herring_i_Clupea_harengus_i_in_subdivisions_25-29_and_32_excluding_the_Gulf_of_Riga_central_Baltic_Sea_/30932081?file=65083161 [6] Ibid., p. 4. ICES identifies genetically distinct spawning components and warns of vulnerability to losses in genetic diversity and overall productivity. [7] ICES, Sprat in subdivisions 22–32: ICES advice . [8] Birgersson, L. and Pedersen Schirmer, C. (2025). Small fish with a big impact – a review of forage fish importance for a healthy Baltic Sea. FishSec (Fiskesekretariatet), Stockholm, Sweden. [9] ICES. 2026. Baltic Fisheries Assessment Working Group (WGBFAS). ICES Scientific Reports 8:39, section 7.2.5, p. 531. ICES reports that industrial sprat fisheries in several Baltic countries may include large bycatches of other species, predominantly herring. https://doi.org/10.17895/ices.pub.32455056
