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Eight urgent, fundamental and simultaneous steps needed to restore ocean health, and the consequences for humanity and the planet of inaction or delay

Urheber*innen

Laffoley,  Dan
External Organizations;

Baxter,  John M.
External Organizations;

Amon,  Diva J.
External Organizations;

Currie,  Duncan E.J.
External Organizations;

Downs,  Craig A.
External Organizations;

Hall‐Spencer,  Jason M.
External Organizations;

Harden‐Davies,  Harriet
External Organizations;

Page,  Richard
External Organizations;

Reid,  Chris P.
External Organizations;

Roberts,  Callum M.
External Organizations;

Rogers,  Alex
External Organizations;

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Thiele,  Torsten
IASS Institute for Advanced Sustainability Studies Potsdam;

Sheppard,  Charles R.C.
External Organizations;

Sumaila,  Rashid U.
External Organizations;

Woodall,  Lucy C.
External Organizations;

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Zitation

Laffoley, D., Baxter, J. M., Amon, D. J., Currie, D. E., Downs, C. A., Hall‐Spencer, J. M., Harden‐Davies, H., Page, R., Reid, C. P., Roberts, C. M., Rogers, A., Thiele, T., Sheppard, C. R., Sumaila, R. U., Woodall, L. C. (2020): Eight urgent, fundamental and simultaneous steps needed to restore ocean health, and the consequences for humanity and the planet of inaction or delay. - Aquatic Conservation: marine and freshwater ecosystems, 30, 1, 194-208.
https://doi.org/10.1002/aqc.3182


Zitierlink: https://publications.rifs-potsdam.de/pubman/item/item_4522902
Zusammenfassung
The ocean crisis is urgent and central to human wellbeing and life on Earth; past and current activities are damaging the planet's main life support system for future generations. We are witnessing an increase in ocean heat, disturbance, acidification, bio‐invasions and nutrients, and reducing oxygen levels. Several of these act like ratchets: once detrimental or negative changes have occurred, they may lock in place and may not be reversible, especially at gross ecological and ocean process scales. Each change may represent a loss to humanity of resources, ecosystem function, oxygen production and species. The longer we pursue unsuitable actions, the more we close the path to recovery and better ocean health and greater benefits for humanity in the future. We stand at a critical juncture and have identified eight priority issues that need to be addressed in unison to help avert a potential ecological disaster in the global ocean. They form a purposely ambitious agenda for global governance and are aimed at informing decision‐makers at a high level. They should also be of interest to the general public. Of all the themes, the highest priority is to rigorously address global warming and limit surface temperature rise to 1.5°C by 2100, as warming is the pre‐eminent factor driving change in the ocean. The other themes are establishing a robust and comprehensive High Seas Treaty, enforcing existing standards for Marine Protected Areas and expanding their coverage, especially in terms of high levels of protection, adopting a precautionary pause on deep‐sea mining, ending overfishing and destructive fishing practices, radically reducing marine pollution, putting in place a financing mechanism for ocean management and protection, and lastly, scaling up science/data gathering and facilitating data sharing. By implementing all eight measures in unison, as a coordinated strategy, we can build resilience to climate change, help sustain fisheries productivity, particularly for low‐income countries dependent on fisheries, protect coasts (e.g. via soft‐engineering/habitat‐based approaches), promote mitigation (e.g. carbon storage) and enable improved adaptation to rapid global change.