Oceans & marine

Ocean

Great Barrier Reef, Queensland, Australia.

Year: 2020

Photographer: Giorgia Doglioni (edited by Frameworks)


Cape Petrel (Daption capense), Antarctic Peninsula

The Cape Petrel, also called Cape Pigeon, is one of the most common seabirds of the Southern Ocean and around Antarctica. They have an estimated population of around 2 million. Cape Petrels feed mainly on crustacean, including krill, and are often seen following ships.

Year: 2016

Photographer: Peter Prokosch

Reflective foams and bubbles on oceans

Sea water has a low albedo of around 0.1 and therefore absorbs most of the incoming solar energy. Since water covers over two thirds of the Earth’s surface, changes to this albedo can potentially cause significant changes in global temperatures.

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Green river

Seagrass Meadows in Greece

Year: 2017

Photographer: Dimitris Poursanidis

Re-oxygenating the Baltic

The deep waters in the Baltic are severely deoxygenated. Although the causes of the current state are complex, this is mainly a result of increased eutrophication from sewage and agricultural runoff from surrounding lands, which leads to extreme bioproductivity (Rolff et al. 2022). Some species manage to survive in the upper water layers, but many organisms living on the seafloor are severely impacted by the hypoxia, thereby influencing the health of a wide network of ecosystems and biochemical processes. There are attempts to reduce nutrient runoff into the Baltic (see for example: https://helcom.fi/baltic-sea-action-plan/). However, some argue these will be insufficient and argue for engineering solutions to the issue.

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