sh.sePublications
Change search
Link to record
Permanent link

Direct link
Publications (10 of 30) Show all publications
Dahl, M., Gullström, M., Bernabeu, I., Serrano, O., Leiva-Dueñas, C., Linderholm, H. W., . . . Mateo, M. A. (2024). A 2,000-Year Record of Eelgrass (Zostera marina L.): Colonization Shows Substantial Gains in Blue Carbon Storage and Nutrient Retention. Global Biogeochemical Cycles, 38(3), Article ID e2023GB008039.
Open this publication in new window or tab >>A 2,000-Year Record of Eelgrass (Zostera marina L.): Colonization Shows Substantial Gains in Blue Carbon Storage and Nutrient Retention
Show others...
2024 (English)In: Global Biogeochemical Cycles, ISSN 0886-6236, E-ISSN 1944-9224, Vol. 38, no 3, article id e2023GB008039Article in journal (Refereed) Published
Abstract [en]

Assessing historical environmental conditions linked to habitat colonization is important for understanding long-term resilience and improving conservation and restoration efforts. Such information is lacking for the seagrass Zostera marina, an important foundation species across cold-temperate coastal areas of the Northern Hemisphere. Here, we reconstructed environmental conditions during the last 14,000 years from sediment cores in two eelgrass (Z. marina) meadows along the Swedish west coast, with the main aims to identify the time frame of seagrass colonization and describe subsequent biogeochemical changes following establishment. Based on vegetation proxies (lipid biomarkers), eelgrass colonization occurred about 2,000 years ago after geomorphological changes that resulted in a shallow, sheltered environment favoring seagrass growth. Seagrass establishment led to up to 20- and 24-fold increases in sedimentary carbon and nitrogen accumulation rates, respectively. This demonstrates the capacity of seagrasses as efficient ecosystem engineers and their role in global change mitigation and adaptation through CO2 removal, and nutrient and sediment retention. By combining regional climate projections and landscape models, we assessed potential climate change effects on seagrass growth, productivity and distribution until 2100. These predictions showed that seagrass meadows are mostly at risk from increased sedimentation and hydrodynamic changes, while the impact from sea level rise alone might be of less importance in the studied area. This study showcases the positive feedback between seagrass colonization and environmental conditions, which holds promise for successful conservation and restoration efforts aimed at supporting climate change mitigation and adaptation, and the provision of several other crucial ecosystem services. © 2024. The Authors.

Place, publisher, year, edition, pages
John Wiley & Sons, 2024
Keywords
climate change, environmental change, millennial scale, nature-based solution, paleoreconstruction, seagrass, environmental conditions, global change, regional climate, sea level change, sedimentation
National Category
Climate Research Ecology
Research subject
Environmental Studies
Identifiers
urn:nbn:se:sh:diva-53746 (URN)10.1029/2023GB008039 (DOI)001181933100001 ()2-s2.0-85187910776 (Scopus ID)
Available from: 2024-03-28 Created: 2024-03-28 Last updated: 2024-04-02Bibliographically approved
Ismail, R. O., Asplund, M. E., Gullström, M., George, R., Dahl, M., Buriyo, A. S., . . . Björk, M. (2023). Effects of calcification on air-water CO2 fluxes in tropical seagrass meadows: A mesocosm experiment. Journal of Experimental Marine Biology and Ecology, 561, Article ID 151864.
Open this publication in new window or tab >>Effects of calcification on air-water CO2 fluxes in tropical seagrass meadows: A mesocosm experiment
Show others...
2023 (English)In: Journal of Experimental Marine Biology and Ecology, ISSN 0022-0981, E-ISSN 1879-1697, Vol. 561, article id 151864Article in journal (Refereed) Published
Abstract [en]

Seagrass meadows deliver a range of ecosystem services, where one of the more important is the capacity to store carbon and serve as sinks for atmospheric carbon dioxide. The capacity of seagrass meadows for carbon storage might, however, be modified and complicated by several factors; one important factor is the possible effects of calcification within the meadows. In tropical areas, seagrass meadows can contain high proportions of calcareous organisms, which through their calcification may cause release of CO2. To study this aspect of the CO2 balance within tropical seagrass systems, we investigated the air-water CO2 flux in seagrass mesocosms with different plant community compositions, i.e. mixtures of seagrass and calcifying macroalgae, having similar overall photosynthetic oxygen evolution rates. The measured CO2 fluxes changed both in rate and direction over the day and were significantly related to plant community composition. Downward fluxes of CO2 were found only over vegetation with high proportion of seagrass and in the afternoon, whereas occurrence of calcifying algae appeared to reverse the flow. A partial least squares (PLS) regression model indicated that pH, pCO2 and dissolved inorganic carbon (DIC) were the primary environmental variables predicting the CO2 fluxes. Our findings show that algal calcification might partly counteract the carbon sequestration in seagrass meadows.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Blue carbon, Calcification, Carbon sinks, Climate change mitigation, Plant community composition, Primary productivity, Seagrass ecosystem
National Category
Ecology
Identifiers
urn:nbn:se:sh:diva-50712 (URN)10.1016/j.jembe.2022.151864 (DOI)000920764200001 ()2-s2.0-85146001769 (Scopus ID)
Projects
Climate mitigation services of coastal seascapes
Funder
Sida - Swedish International Development Cooperation AgencySwedish Research Council, 2019–04038
Available from: 2023-01-23 Created: 2023-01-23 Last updated: 2023-03-06Bibliographically approved
Dahl, M., Asplund, M. E., Bergman, S., Björk, M., Braun, S., Löfgren, E., . . . Gullström, M. (2023). First assessment of seagrass carbon accumulation rates in Sweden: A field study from a fjord system at the Skagerrak coast. PLOS Climate, 2(1), Article ID e0000099.
Open this publication in new window or tab >>First assessment of seagrass carbon accumulation rates in Sweden: A field study from a fjord system at the Skagerrak coast
Show others...
2023 (English)In: PLOS Climate, E-ISSN 2767-3200, Vol. 2, no 1, article id e0000099Article in journal (Refereed) Published
Abstract [en]

Seagrass meadows are globally important blue carbon sinks. In northern cold-temperate regions, eelgrass (Zostera marina) is the dominant seagrass species, and although their sedimentary carbon stocks have been quantified across regions, information regarding the CO2 withdrawal capacity as carbon sinks remains scarce. Here we assessed the carbon (Corg) accumulation rates (CARs) and stocks as well as the organic matter sources in five seagrass meadows in the Gullmar Fjord area on the Swedish Skagerrak coast. We found that the mean (±SD) CAR was 14 ± 3 g Corg m-2 yr-1 over the last ~120–140 years (corresponding to a yearly uptake of 52.4 ± 12.6 g CO2 m-2). The carbon sink capacity is in line with other Z. marina areas but relatively low compared to other seagrass species and regions globally. About half of the sedimentary carbon accumulation (7.1 ± 3.3 g Corg m-2 yr-1) originated from macroalgae biomass, which highlights the importance of non-seagrass derived material for the carbon sink function of seagrass meadows in the area. The Corg stocks were similar among sites when comparing at a standardized depth of 50 cm (4.6–5.9 kg Corg m-2), but showed large variation when assessed for the total extent of the cores (ranging from 0.7 to 20.6 kg Corg m-2 for sediment depths of 11 to at least 149 cm). The low sediment accretion rates (1.18–1.86 mm yr-1) and the relatively thick sediment deposits (with a maximum of >150 cm of sediment depth) suggests that the carbon stocks have likely been accumulated for an extended period of time, and that the documented loss of seagrass meadows in the Swedish Skagerrak region and associated erosion of the sediment could potentially have offset centuries of carbon sequestration.

Place, publisher, year, edition, pages
Public Library of Science (PLoS), 2023
National Category
Climate Research
Identifiers
urn:nbn:se:sh:diva-51277 (URN)10.1371/journal.pclm.0000099 (DOI)
Funder
The Foundation for Baltic and East European Studies, 21-GP-0005The Foundation for Baltic and East European Studies, 21-PD2-0002Helge Ax:son Johnsons stiftelse , F21-0103Australian Research Council, LE170100219
Note

Funder:

Albert och Maria Bergström foundation

Bolin Centre for climate research

Available from: 2023-04-04 Created: 2023-04-04 Last updated: 2023-04-13Bibliographically approved
Mgeleka, S. S. S., Silas, M. O., Mtonga, C., Rumisha, C., Viinamaki, E., Polte, P., . . . Gullström, M. (2023). Population genetics of the hound needlefish Tylosurus crocodilus (Belonidae) indicate high connectivity in Tanzanian coastal waters. Marine Biology Research, 19(4-5), 261-270
Open this publication in new window or tab >>Population genetics of the hound needlefish Tylosurus crocodilus (Belonidae) indicate high connectivity in Tanzanian coastal waters
Show others...
2023 (English)In: Marine Biology Research, ISSN 1745-1000, E-ISSN 1745-1019, Vol. 19, no 4-5, p. 261-270Article in journal (Refereed) Published
Abstract [en]

The hound needlefish Tylosurus crocodilus (Belonidae) is a highly demanded fish in the local markets of Tanzania, but the growing coastal population threatens its sustainability. As belonids are highly migratory fishes utilising various parts of the seascape, increased fishing pressure may disrupt connectivity patterns on different spatiotemporal scales and disaggregate populations. Using the COI gene, this study assessed the genetic population structure, connectivity patterns, and historical demography of T. crocodilus collected in seven sites spread along Tanzanian coastal waters. Results showed fourteen haplotypes with low overall nucleotide and haplotype diversity. Pairwise F-ST comparisons revealed no significant differences among the sampled sites, except for the northernmost site (Tanga) and an island in the south (Songosongo). Analysis of molecular variance (AMOVA) revealed a non-significant genetic structure among populations (F-ST = 0.01782), suggesting the fishery across Tanzanian waters exploits the same population. Moreover, there was no correlative relationship between genetic and pairwise geographic distances, rejecting the isolation by distance hypothesis. However, neutrality tests and mismatch distribution analysis revealed that recent demographic expansion might exist. Empirical evidence of panmixia suggests high genetic connectivity. In combination with low genetic diversity, management should be directed to actions that prevent genetic diversity loss and the effect of genetic drift on populations.

Place, publisher, year, edition, pages
Taylor & Francis, 2023
Keywords
Hound needlefish, population structure, genetic diversity, haplotype diversity, genetic connectivity, >
National Category
Ecology
Identifiers
urn:nbn:se:sh:diva-52148 (URN)10.1080/17451000.2023.2224026 (DOI)001027493100001 ()2-s2.0-85165136324 (Scopus ID)
Funder
Sida - Swedish International Development Cooperation Agency
Available from: 2023-08-24 Created: 2023-08-24 Last updated: 2023-08-30Bibliographically approved
Elma, E., Gullström, M., Yahya, S. A. .., Jouffray, J.-B., East, H. K. & Nyström, M. (2023). Post-bleaching alterations in coral reef communities. Marine Pollution Bulletin, 186, Article ID 114479.
Open this publication in new window or tab >>Post-bleaching alterations in coral reef communities
Show others...
2023 (English)In: Marine Pollution Bulletin, ISSN 0025-326X, E-ISSN 1879-3363, Vol. 186, article id 114479Article in journal (Refereed) Published
Abstract [en]

We explored the extent of post-bleaching impacts, caused by the 2014–2016 El Niño Southern Oscillation (ENSO) event, on benthic community structure (BCS) and herbivores (fish and sea urchins) on seven fringing reefs, with differing protection levels, in Zanzibar, Tanzania. Results showed post-bleaching alterations in BCS, with up to 68 % coral mortality and up to 48 % increase in turf algae cover in all reef sites. Herbivorous fish biomass increased after bleaching and was correlated with turf algae increase in some reefs, while the opposite was found for sea urchin densities, with significant declines and complete absence. The severity of the impact varied across individual reefs, with larger impact on the protected reefs, compared to the unprotected reefs. Our study provides a highly relevant reference point to guide future research and contributes to our understanding of post-bleaching impacts, trends, and evaluation of coral reef health and resilience in the region.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
El Niño, Coral bleaching, Turf algae, Herbivores, Coral reef resilience, Tanzania
National Category
Ecology
Identifiers
urn:nbn:se:sh:diva-50463 (URN)10.1016/j.marpolbul.2022.114479 (DOI)000954336200001 ()36549237 (PubMedID)2-s2.0-85144417776 (Scopus ID)
Funder
Sida - Swedish International Development Cooperation Agency
Available from: 2023-01-02 Created: 2023-01-02 Last updated: 2023-04-18Bibliographically approved
Silas, M. O., Kishe, M. A., Semba, M. R., Kuboja, B. N., Ngatunga, B., Mgeleka, S. S., . . . Gullström, M. (2023). Seascape configuration influences big blue octopus (Octopus cyanea) catches: Implications for a sustainable fishery. Fisheries Research, 264, Article ID 106716.
Open this publication in new window or tab >>Seascape configuration influences big blue octopus (Octopus cyanea) catches: Implications for a sustainable fishery
Show others...
2023 (English)In: Fisheries Research, ISSN 0165-7836, E-ISSN 1872-6763, Vol. 264, article id 106716Article in journal (Refereed) Published
Abstract [en]

Seascape configuration is known to influence fish distribution and abundance in coastal waters. However, there is little information regarding how the shape of the coastal seascape influences catches of landed fisheries species, particularly so in the understudied western Indian Ocean (WIO). With focus on big blue octopus (Octopus cyanea), which is a widely found cephalopod species in the WIO, we compared landed catches (biomass, catch rate, and density) in submerged and exposed reefs, and explored the influence of proximity to fishing villages and reef habitat size on octopus landings. We used fishery-dependent data collected between 2018 and 2020 from eight landing sites spread across the Tanzanian coast. We found a strong relationship between biomass of octopus catch and distance from fished reefs to fishing villages, with higher fished biomass on reefs farther away. Octopus densities were higher, while catch rates were lower, on reefs very close to (within one km distance from) fishing villages compared to more distant reefs. In general, submerged reefs provided higher catches than exposed reefs. The low octopus catches on the exposed reefs were attributed to high fishing pressure, while submerged reefs that are only accessible through diving provide optimal areas for octopuses to grow. Octopus catches were, however, not significantly affected by reef size. The findings suggest that management policies should proportionate fishing efforts to ensure sustainable exploitation of reefs and associated fishery resources.

Place, publisher, year, edition, pages
Elsevier, 2023
National Category
Ecology
Research subject
Environmental Studies
Identifiers
urn:nbn:se:sh:diva-51506 (URN)10.1016/j.fishres.2023.106716 (DOI)000987245900001 ()2-s2.0-85154529172 (Scopus ID)
Funder
Sida - Swedish International Development Cooperation Agency
Available from: 2023-05-17 Created: 2023-05-17 Last updated: 2023-06-09Bibliographically approved
Silas, M. O., Semba, M. L., Mgeleka, S. S., Van Well, L., Linderholm, H. W. & Gullström, M. (2023). Using fishers’ local ecological knowledge for management of small-scale fisheries in data-poor regions: Comparing seasonal interview and field observation records in East Africa. Fisheries Research, 264, Article ID 106721.
Open this publication in new window or tab >>Using fishers’ local ecological knowledge for management of small-scale fisheries in data-poor regions: Comparing seasonal interview and field observation records in East Africa
Show others...
2023 (English)In: Fisheries Research, ISSN 0165-7836, E-ISSN 1872-6763, Vol. 264, article id 106721Article in journal (Refereed) Published
Abstract [en]

Fishers, scientists and policy makers need to describe, understand and “agree on” variations in fish catches caused by exploitation and climate change for effective fisheries management. To achieve this, relevant data with sufficient spatiotemporal resolution is a necessity. In regions of the Global South, such as the Western Indian Ocean (WIO), fish catch data useful for management is scarce or non-existing. Still, the potential of local ecological knowledge to provide such information has not been fully utilised in these regions. In this study, we evaluated fishers’ local ecological knowledge (based on interviews) against detailed seasonal fish catch variability data based on catch per unit effort (CPUE) records. Because of the importance of the monsoon seasons for marine resource variability, differences in fish catches during the northeast (NE) and southeast (SE) monsoon seasons were investigated. Fishers’ perceptions generally agreed with catch data records, both showing that the NE monsoon season generally provides higher catch rates than the SE monsoon season. The fishers’ perceptions at two of the landing sites (Nyamisati and Shangani) contradict the recorded observations by showing highest fish catches during the SE monsoon season. It was clear, however, that fishers’ perceptions in these two sites focused on the most valuable target species (prawn and tuna in Nyamisati and Shangani, respectively) rather than total catches. In this particular case, fishers’ perceptions facilitated the significance of taking target species into consideration. The findings of this study highlight the importance of integrating local ecological knowledge into scientific research to help understand the complex dynamics of coastal fisheries and improve the management of data-poor fisheries. 

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Fish catch rates, Fishers’ local ecological knowledge, Monsoon seasons, River discharge, Sea surface temperature, Small-scale fisheries
National Category
Fish and Aquacultural Science
Research subject
Environmental Studies
Identifiers
urn:nbn:se:sh:diva-51423 (URN)10.1016/j.fishres.2023.106721 (DOI)000990368900001 ()2-s2.0-85153612632 (Scopus ID)
Funder
Sida - Swedish International Development Cooperation Agency
Available from: 2023-05-08 Created: 2023-05-08 Last updated: 2023-06-02Bibliographically approved
Charisiadou, S., Halling, C., Jiddawi, N., von Schreeb, K., Gullström, M., Larsson, T. & Nordlund, L. M. (2022). Coastal aquaculture in Zanzibar, Tanzania. Aquaculture, 546, Article ID 737331.
Open this publication in new window or tab >>Coastal aquaculture in Zanzibar, Tanzania
Show others...
2022 (English)In: Aquaculture, ISSN 0044-8486, E-ISSN 1873-5622, Vol. 546, article id 737331Article in journal (Refereed) Published
Abstract [en]

This study provides an overview of the multi-sectoral coastal aquaculture development in Zanzibar (Tanzania) over the last thirty years based on empirical evidence from interviews, field observations, policy reports and literature reviews. Despite the immense potential of aquaculture for food and livelihoods, only seaweed farming has so far established into commercial-scale production. This activity is dominated by women and became widespread in the early 1990s as a small but regular source of income. However, seaweed farming constraints such as frequent seaweed die-offs, as well as economic and institutional constraints inhibit its development. Other types of aquaculture activities such as fish farming, mud crab fattening, half-pearl farming, sea cucumber farming and sponge and coral cultures are under development with limited production or in experimental stages. Common constraints among these activities are economic limitations, lack of technical infrastructure and skills, small and irregular production, and limited trade and market availabilities. At the same time, there is a lack of sufficient management and monitoring systems, while there are no formal regulations or clear strategies to boost aquaculture at the national level. In addition, new aquaculture initiatives are often dominated by donor-driven projects instead of local entrepreneurships. This situation does not encourage engagement in aquaculture and thus such activities are outcompeted by other already established sectors (e.g. agriculture and fisheries). We conclude that aquaculture has great potential to evolve due to high environmental capacity. Nevertheless, achieving profitable production and a stronger commitment within local communities, as well as developing effective mariculture governance through support mechanisms and clear strategies to boost the sector at the national level, are essential for sustainable mariculture development in Zanzibar.

Place, publisher, year, edition, pages
Elsevier, 2022
Keywords
Crab fattening, Fish farming, Mariculture governance, Pearl farming, Sea cucumber cultures, Seaweed farming, Western Indian Ocean, Holothuroidea, Porifera
National Category
Environmental Sciences
Identifiers
urn:nbn:se:sh:diva-46414 (URN)10.1016/j.aquaculture.2021.737331 (DOI)000729961500018 ()2-s2.0-85113382097 (Scopus ID)
Funder
Swedish Research Council Formas, 2014-1288Swedish Research Council Formas, 2011-1111Sida - Swedish International Development Cooperation Agency
Available from: 2021-09-16 Created: 2021-09-16 Last updated: 2021-12-23Bibliographically approved
Nyangoko, B. P., Berg, H., Mangora, M. M., Shalli, M. S. & Gullström, M. (2022). Community perceptions of climate change and ecosystem-based adaptation in the mangrove ecosystem of the Rufiji Delta, Tanzania. Climate and Development, 14(10), 896-908
Open this publication in new window or tab >>Community perceptions of climate change and ecosystem-based adaptation in the mangrove ecosystem of the Rufiji Delta, Tanzania
Show others...
2022 (English)In: Climate and Development, ISSN 1756-5529, E-ISSN 1756-5537, Vol. 14, no 10, p. 896-908Article in journal (Refereed) Published
Abstract [en]

Mangroves are increasingly recognized for their role in supporting adaptation to climate change and variability. However, knowledge about how climate change and variability affect mangrove ecosystem services (MES) and their role in supporting coastal communities to adaption is limited in Tanzania. We used participatory rural appraisal methods and field observations to explore local communities' perceptions of climate change and variability, and ecosystem-based adaptation (EbA) strategies in the mangroves of the Rufiji Delta, Tanzania. Decrease in rainfall, increased temperatures, coastal flooding, and the incidence of sea level rise were identified as key variables associated with a changing climate in the delta. Perceived climatic stresses included damaged fish breeding sites, altered climate regulation and a decrease in coastal protection and flood control. Decline in crop, fish and honey production were perceived as the main impacts on community livelihoods, although there were significant differences across occupational groups. Dependence on MES in times of shocks, such as when agriculture production fails, switching of occupation, crop diversification, fishing in deep waters and migration to other areas provided potential adaptation options. Although the reported perceptions related to climate change or variability are not explicit, they both have negative consequences to mangrove dependent communities' livelihoods.

Place, publisher, year, edition, pages
Taylor & Francis, 2022
Keywords
Climate change, mangroves, ecosystem services, ecosystem-based adaptation, Rufiji Delta, Tanzania
National Category
Ecology
Identifiers
urn:nbn:se:sh:diva-48320 (URN)10.1080/17565529.2021.2022449 (DOI)000744709900001 ()2-s2.0-85123406286 (Scopus ID)
Funder
Sida - Swedish International Development Cooperation Agency
Available from: 2022-02-03 Created: 2022-02-03 Last updated: 2022-12-23Bibliographically approved
Moberg, C., Wolrath Söderberg, M., Sandberg, L., Lindblad, I., Sjöholm, C., Gullström, M., . . . Stedt, K. (2022). De unga gör helt rätt när de stämmer staten: 1 620 forskare och lärare i forskarvärlden: Vi ställer oss bakom Auroras klimatkrav. Aftonbladet (2022-12-07)
Open this publication in new window or tab >>De unga gör helt rätt när de stämmer staten: 1 620 forskare och lärare i forskarvärlden: Vi ställer oss bakom Auroras klimatkrav
Show others...
2022 (Swedish)In: Aftonbladet, no 2022-12-07, p. 2Article in journal, News item (Other (popular science, discussion, etc.)) Published
Abstract [sv]

Vi, 1 620 forskare samt lärare vid universitet och högskolor, är eniga med de unga bakom Auroramålet: De drabbas och riskerar att drabbas allvarligt av klimatkrisen under sin livstid. De klimatåtgärder vi vidtar i närtid avgör deras framtid. Sverige måste ta ansvar och göra sin rättvisa andel av det globala klimatarbetet. 

I strid med Parisavtalet ökar utsläppen av växthusgaser i en takt som gör att 1,5-gradersmålet kan överskridas om några år. De globala effekterna blir allt mer synliga med ständiga temperaturrekord, smältande isar, havshöjning och extremväder som torka, förödande bränder och skyfall med enorma översvämningar, som i Pakistan nyligen. Försörjningen av befolkningen utsätts för allvarliga hot i många länder.

Minskningen av den biologiska mångfalden är extrem. Klimatkrisen är enligt WHO det största hotet mot människors hälsa i hela världen och barn utgör en särskilt sårbar grupp. Med Sveriges nordliga läge sker uppvärmningen här dubbelt så fort som det globala genomsnittet. Det förskjuter utbredningsområden för växtlighet och sjukdomsbärande insekter och ökar förekomsten av extremväder såsom värmeböljor, skogsbränder och översvämningar samt av många olika sorters infektioner och allergier. När extremväder ökar, ökar även stressen och risken för mental ohälsa. Värmeböljor ökar risken för sjukdom och död hos sårbara grupper som äldre, små barn och personer med kroniska sjukdomar. De negativa effekterna på hälsan kommer att öka i takt med klimatkrisen och barn riskerar att drabbas av ackumulerade negativa hälsoeffekter under hela sina liv. Redan i dag är mer än hälften av unga mellan 12 och 18 år i Sverige ganska eller mycket oroliga för klimat och miljö. Detta är förståeligt när våra beslutsfattare inte gör vad som krävs.

Den juridiska och moraliska grunden för arbetet mot klimatförändringarna är att varje land måste göra sin rättvisa andel av det globala klimatarbetet. Centralt i det internationella klimatramverket är att rika länder med höga historiska utsläpp, däribland Sverige, måste gå före resten av världen. Dessa länder måste också bidra till att finansiera klimatomställningen i länderna i det Globala Syd, som är minst ansvariga för klimatkrisen men drabbas hårdast. Denna rättviseprincip är tydlig i Parisavtalet och var en het diskussionsfråga under COP27 i Sharm el-Sheikh, men lyser med sin frånvaro i det svenska klimatarbetet. 

Sverige har satt mål för att minska sina utsläpp. Men de är helt otillräckliga: minskningstakten är för låg och målen tillåter samtidigt att åtgärder skjuts på framtiden. Dessutom exkluderas merparten av Sveriges utsläpp från de svenska nationella utsläppsmålen; bland annat utelämnas utsläpp som svensk konsumtion orsakar utanför Sveriges gränser, utsläpp från utrikes transporter och utsläpp från markanvändning och skogsbruk, exempelvis utsläpp från förbränning av biobränslen eller utsläpp från dikade våtmarker (Prop. 2016/17:146 s.25-28).

Sverige saknar dessutom ett eget mål för att öka upptaget av växthusgaser genom utökat skydd och restaurering av ekosystem, något som krävs för att begränsa de värsta konsekvenserna av klimatkrisen (IPCC s.32). Trots dessa låga ambitioner misslyckas Sverige med att nå sina utsläppsmål, konstaterar både Klimatpolitiska rådet och Naturvårdsverket. En klimatpolitik i linje med Parisavtalet kräver både att alla typer av växthusgasutsläpp minskar samtidigt som – inte i stället för – upptaget av växthusgaser maximeras: i dag misslyckas Sverige på bägge fronter.

Slutsatsen är tydlig. Sverige vidtar inte de åtgärder som krävs för att skydda barns och ungdomars rättigheter enligt Europakonventionen till skydd för de mänskliga rättigheterna. Detta medför allvarliga risker för liv och hälsa för unga generationer, människor i andra länder och särskilt utsatta grupper. Detta kan inte fortsätta. Därför ställer vi oss bakom Auroras krav att Sverige börjar göra sin rättvisa andel och omedelbart sätter igång ett omfattande och långtgående klimatarbete som vilar på vetenskaplig grund och sätter rättvisa i centrum.

Place, publisher, year, edition, pages
Aftonbladet, 2022. p. 2
Keywords
Klimatförändringar; växthusgaser; mänskliga rättigheter
National Category
Law and Society
Identifiers
urn:nbn:se:sh:diva-50340 (URN)
Note

Aftonbladet Debatt

Available from: 2022-12-07 Created: 2022-12-07 Last updated: 2023-10-06Bibliographically approved
Projects
Climate change mitigation capacity of Swedish coastal seascapes [2021-01280_Formas]; Södertörn UniversityClimate change mitigation capacity of the Baltic coastal seascape: identification of hotspot environments for coastal blue carbon sequestration and guidance for sustainable management of the Baltic coastal landscapes under global change (CLIM-SCAPE) [21-GP-0005_OS]; Södertörn University; Publications
Dahl, M., Asplund, M. E., Bergman, S., Björk, M., Braun, S., Löfgren, E., . . . Gullström, M. (2023). First assessment of seagrass carbon accumulation rates in Sweden: A field study from a fjord system at the Skagerrak coast. PLOS Climate, 2(1), Article ID e0000099. Krause-Jensen, D., Gundersen, H., Björk, M., Gullström, M., Dahl, M., Asplund, M. E., . . . Hancke, K. (2022). Nordic Blue Carbon Ecosystems: Status and Outlook. Frontiers in Marine Science, 9, Article ID 847544.
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-7552-2431

Search in DiVA

Show all publications