Oceans & marine

Ocean

Great Barrier Reef, Queensland, Australia.

Year: 2020

Photographer: Giorgia Doglioni (edited by Frameworks)


Fishing boat in between icebergs, Disco Bay, Greenland

The loss of ice in Greenland and the shrinking of glaciers in other parts of the Arctic currently contribute up to 40% of the average 3 mm global sea level rise per year. A number of studies suggest that Greenland could be a major contributor to a potential rise in sea levels of 0,5 to 1 meter by the end of the century.

Year: 2013

Photographer: Peter Prokosch

Improved fishing practices and management

Fisheries contribute to global CO2 emissions by the extraction of fish, disturbance of coastal and oceanic blue carbon ecosystems, and the use of fossil fuels as their main energy source. Fishing vessels are moreover a major source of short-lived climate forcers like black carbon (McKuin and Campbell 2016), which can have a major effect in Arctic and Northern regions (see Black carbon reduction).

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Cultivating algae for export to Japan, Zanzibar

Zanzibar is a semi-autonomous part of Tanzania, in East Africa.

Year: 2013

Photographer: Yannick Beadoin

Seaweed and macro algae cultivation

The potential of carbon sequestration by marine based plants such as mangroves, seagrass and algae, often referred to as blue carbon, and the importance of better understanding it, has clearly been recognised (Mcleod et al. 2011). The IPCC Special Report on the Ocean and Cryosphere in a Changing Climate (2019) concluded blue carbon can play an important role in both climate regulation and adaptation. The term algae groups together several kinds of marine photosynthetic organisms. These are often subdivided into very small microalgae like phytoplankton, and larger macroalgae like kelp and seaweed. Although there is still large uncertainty about the total amount of carbon sequestered by these marine organisms, a recent estimate by Duarte et al. (2022) indicated that all macroalgae took in as much CO2 as the Amazon rainforest.

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