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At the end of September 2022, almost half a million tonnes of methane were released into the atmosphere due to damage to the Nord Stream pipelines. This is the largest amount of the greenhouse gas methane released in a single event. This conclusion comes from analysis by the International Methane Emissions Observatory (IMEO) from the United Nations Environment Programme (UNEP). Nearly 70 scientists from 30 research organisations collaborated on the analysis, among them a scientist from the Alfred Wegener Institute. More information

It is a historic milestone for climate research: an international research team involving the Alfred Wegener Institute has successfully drilled a 2,800 metre-long ice core , reaching the bedrock beneath the Antarctic ice sheet. In the fourth Antarctic season of the European Commission-funded project "Beyond EPICA - Oldest Ice", the team was able to drill ice that contains a continuous record of the history of our climate as far back as 1.2 million years ago - and probably beyond. The previous age record comes from the EPICA core drilled in 2004, which…

Marine heatwaves are becoming more frequent and intense. The Arctic Ocean also suffers from this development: The absence of sea ice will lead to more extreme fluctuations in ocean temperatures, with abrupt temperature changes occurring at unprecedented rates. A new study led by the Alfred Wegener Institute shows how marine heatwaves will also become much more intense and frequent in the Arctic in the 21st century. With drastic consequences for the ecosystem. The researchers published their findings in the scientific journal Nature Climate Change.

The Arctic experiences some of the most rapid climate changes on the planet, resulting in significant sea-ice melt. This transformation exposed the Arctic Ocean to increasing sunlight, driving a 56% rise in organic matter production through photosynthesis (net primary production) over the past two decades, according to remote-sensing studies. At the same time, permafrost thaw is accelerating due to warming, releasing more nutrients and carbon into the Arctic Ocean, delivered from rivers and coastal erosion. While it might seem logical that these…

In the Arctic, the old, multiyear ice is increasingly melting, dramatically reducing the frequency and size of pressure ridges. These ridges are created when ice floes press against each other and become stacked, and are a characteristic feature of Arctic sea ice, an obstacle for shipping, but also an essential component of the ecosystem. In a recently released study in the journal Nature Climate Change, experts from the Alfred Wegener Institute report on this trend and analyse observational data from three decades of aerial surveys.

Good news for the German research fleet, German shipbuilding, and international polar research alike: the new Polarstern will be constructed in Wismar by thyssenkrupp Marine Systems.  company received the official contract to construct a new research icebreaker from the Alfred Wegener Institute (AWI) today, marking the end of a two and a half-year-long Europe-wide call for tenders. The new flagship of German climate research will cost an estimated 1.185 billion euros. Following five years of construction, she is to be handed over to the research…

The "ES&T Best Paper Award 2023" is a prestigious award presented annually by the journal Environmental Science & Technology (ES&T). The award recognises outstanding scientific papers that make a significant contribution to research in the field of environmental science and technology. This year, a study on plastic pollution, in which Sebastian Primpke from the AWI was involved, was selected as one of the award winners.

After several years of service under harsh weather conditions, the rotor blades of offshore wind parks are subjected to degradation and surface erosion, releasing sizeable quantities of particle emissions into the environment. A team of researchers led by the Alfred Wegener Institute has now investigated the effects of these particle on blue mussels – a species also being considered for the multi-use of wind parks for aquaculture. In the experiment, the mussels absorbed metals from the rotor blades’ coatings, as the team describes in a study just…

KomSO - a new cooperation under the Federal Environment Ministry's Natural Climate Protection Action Programme (ANK): The kick-off meeting took place from 5 to 6 December 2024 at the HWK in Delmenhorst. The project is funded by the Federal Agency for Nature Conservation (BfN) and coordinated by Sabine Kasten from the AWI. The aim is to investigate the carbon storage capacity of marine sediments in the German Baltic Sea in order to identify areas with particularly high climate protection potential. More information.

Rising sea levels, melting glaciers, heatwaves at sea – 2023 set a number of alarming new records. The global mean temperature also rose to nearly 1.5 degrees above the preindustrial level, another record. Seeking to identify the causes of this sudden rise has proven a challenge for researchers. After all, factoring in the effects of anthropogenic influences like the accumulation of greenhouse gases in the atmosphere, of the weather phenomenon El Niño, and of natural events like volcanic eruptions, can account for a major portion of the warming. But…