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Irregular Appearances of Glacial and Interglacial Climate States
During the last 2.6 million years of Earth’s climate has alterd between glacial and interglacial states. As such, there have been times in which the transition between the two climate states appeared with either regular or irregular periodicity. AWI researcher Peter Köhler has now discovered that the irregular appearance of interglacials has been more frequent than previously thought. His study makes a significant contribution to our understanding of Earth’s fundamental climate changes.
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Depths of the Weddell Sea are warming five times faster than elsewhere
Over the past three decades, the depths of the Antarctic Weddell Sea have warmed five times faster than the rest of the ocean at depths exceeding 2,000 metres. This was the main finding of an article just published by oceanographers from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI). In the article, they analyse an unprecedented oceanographic time series from the Weddell Sea and show that the warming of the polar depths is chiefly due to changed winds and currents above and in the Southern Ocean. In addition, the…
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The future of krill
Krill is rapidly gaining popularity. The small shrimp-like organism from the Antarctic is used as fish food in aquaculture and increasingly in dietary supplements and healing ointments. Although the krill catch is regulated, caution is required to avoid endangering the population itself and the species that depend on it, warns a group of krill experts headed by Prof. Dr. Bettina Meyer from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) in the journal Communications Earth & Environment - Nature.
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Hans-Otto Pörtner elected to the WBGU
Professor Hans-Otto Pörtner, AWI scientist and member of the Intergovernmental Panel on Climate Change (IPCC), has been appointed member of the German Advisory Council on Global Change (WBGU). The Advisory Council acts as an independent scientific advisory body and analyses global environment and development problems, evaluates global sustainability policy and makes recommendations for action and research. See WBGU press release.
The grand finale to the expedition of a century
After more than a year in the Central Arctic, this Monday, 12 October, the research icebreaker Polarstern returned to her homeport in Bremerhaven. Accompanied by a ‘welcome committee’ of ships that came to greet, the ship entered the North Lock with the morning high tide, at ca. 9:00 am. At port, Expedition Leader Markus Rex, Captain Thomas Wunderlich and the entire team from the final leg of the expedition were welcomed by e.g. Federal Minister of Research Anja Karliczek and the Director of the Alfred Wegener Institute, Antje Boetius. The event marked…
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Statement
The Alfred Wegener Institute comments on the latest reports in the media and social networks about alleged equality and diversity problems in connection with the MOSAiC expedition.
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#EU4Ocean
EU4Ocean: The new EU network on marine protection was launched with the workshop "Designing Ocean Literacy action in Europe" as a kick-off event. The EU4Ocean Platform, consisting of 76 organisations and initiatives, presented concrete ideas for global marine protection for the first time at the virtual event. AWI is also a member and was represented at the event by Gesche Krause.
Enhanced warming subtropical ocean is expanding the tropics
The severe droughts in the USA and Australia are the first sign that the tropics, and their warm temperatures, are apparently expanding in the wake of climate change. But until now, scientists have been unable to conclusively explain the reasons for this, because they were mostly focusing on atmospheric processes. Now, experts at the AWI have solved the puzzle: the alarming expansion of the tropics is not caused by processes in the atmosphere, but quite simply by warming subtropical ocean.
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Taking aim at tiny threats
Many experts are concerned by the increasing pollution of the environment with tiny plastic particles. But we still don’t know enough about the scope of the problem: though there are various methods for detecting microplastic in water and in other samples, it’s often difficult to compare the results. An international team led by Dr Sebastian Primpke and Dr Michaela Meyns from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) has now presented possible solutions in two new studies released in the journal “Applied…
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Team of the Year
We are delighted to announce that the communication team of the MOSAiC expedition yesterday received the BdKom Award 2020 in the category "Team of the Year". This prize is awarded annually by the German Federal Association of Communicators, in four categories. The "Team of the Year" award recognizes the joint and professional communication performance of a department and the concept of its communication project.