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Press release

Research vessel Polarstern returns home after one and a half years in the Antarctic

[09. April 2014] 

After one and a half years in the Antarctic the research vessel Polarstern is expected back in its home port on 13 April. Apart from the crew and scientists on board, there are lots of data, samples and animals from the Southern Ocean that will soon be examined more closely in the laboratories of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI). They stem from the area of the Filchner-Ronne Ice Shelf in the very south of the Weddell Sea, where scientists conducted research on sea ice, oceanic currents and the biocoenoses on the last Antarctic cruise leg of the expedition.


Press release

AWI researchers decipher climate paradox from the Miocene: growth of Antarctic ice sheet triggered warming in the Southern Ocean

[08. April 2014] 

Scientists of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), have deciphered a supposed climate paradox from the Miocene era by means of complex model simulations. When the Antarctic ice sheet grew to its present-day size around 14 million years ago, it did not get colder everywhere on the Earth, but there were regions that became warmer. A physical contradiction?


Press release

“Like a giant elevator to the stratosphere”

[03. April 2014] 

An international team of researchers headed by Potsdam scientist Dr. Markus Rex from the Alfred Wegener Institute has discovered a previously unknown atmospheric phenomenon over the South Seas. Over the tropical West Pacific there is a natural, invisible hole extending over several thousand kilometres in a layer that prevents transport of most of the natural and manmade substances into the stratosphere by virtue of its chemical composition. Like in a giant elevator, many chemical compounds emitted at the ground pass thus unfiltered through this so-called “detergent layer” of the atmosphere. The newly discovered phenomenon over the South Seas boosts ozone depletion in the polar regions and could have a significant influence on the future climate of the Earth.


Press release

Climate change: Earth warming already leads to significant changes in oceans

[24. March 2014] 

The current and projected climate change is altering living conditions in the oceans faster than during comparable events in the past 65 million years. This is the conclusion drawn by AWI biologist Prof. Dr. Hans-Otto Pörtner, who will take part in the coordination phase for the second part of the Fifth Assessment Report on climate change in Yokohama, Japan starting tomorrow. The expert from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), jointly headed the work on the chapter “Ocean Systems” together with his American colleague David Karl. It summarises the knowledge regarding the already observed and future consequences of climate change for life in the oceans.


Press release

New actors in the Arctic ecosystem: Atlantic amphipods are now reproducing in Arctic waters

[12. December 2013] 

Biologists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) have for the first time shown that amphipods from the warmer Atlantic are now reproducing in Arctic waters to the west of Spitsbergen. This surprising discovery indicates a possible shift of the Arctic zooplankton community, scientists report in the journal Marine Ecology Progress Series.


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