to 2000, the later years of the long period of sustained growth that was observed from the early 1980s (when the global measurement network began) through to the end of the century. Then came the period [...] but the focus of higher growth was further south, around 40°N. Growth in 2015 was led by the northern tropics and the Arctic/Boreal zone lagged the rest of the world, but in 2016 the zone north of 50°N [...] shift in the carbon isotope ratio of the methane. The causes of the rise are not fully understood, and may include increased emissions and perhaps a decline in the destruction of methane in the air. Methane's

Spectrogram of 20060419-0814_PALAOA (Photo: OZA AWI) A silent ocean Southern Ocean with sea ice (Photo: AWI) The Southern Ocean is one of the last pristine areas of the world’s oceans. Only few fishing and [...] Examples of underwater sounds in the polar oceans Map of the Atlantic sector of the Southern Ocean with all recording positions marked in red. (Photo: OZA AWI) The sound snippets below illustrate some [...] frequently in the vicinity of Elephant Island, off the northern tip of the Antarctic Peninsula, where the 20 Hz pulse also often contains a higher frequency component around 89 Hz. Spectrogram of 20130705-

focuses on understanding the drivers of sea surface temperature (SST) and sea ice changes from the satellite era to a warmer world. SO-ASE aims to unravel the fundamental physics of ice-climate interactions [...] Development (ESD) of the Federal Ministry of Education and Research and the German UNESCO Commission. The klimafit core team includes: at AWI: Dr. Renate Treffeisen, Dr. Klaus Grosfeld, at the WWF Germany: [...] Stephanie Arndt , 2023. Video of the Prize winner Silent Hero Preis Stephanie Carstensen , 2023. Video of the Prize winner Doctoral Award Dr. Luisa von Albedyll , 2022. Video of the Prize winner

in the Pacific Southern Ocean since the Mid-Pleistocene Transition The Southern Ocean plays a critical role in the Earth system, both for the uptake of anthropogenic carbon and for the exchange of heat [...] inspired the concept of the Arcwatch expeditions. The SNAC-cluster now aims at providing a synoptic view of the changing CAO. The “PaRaThA” project is based on the time-integrated information from the natural [...] sedimentation rate and the spatial distribution of the controlling environmental parameters in order to: to quantify the content of organic carbon (OC) in the sediments of the Baltic Sea, assess their OC a

Marine Protected Area The Weddell Sea lies in the Atlantic sector of the Antarctic, to the east of the Antarctic Peninsula. It is one of the few remaining marine regions in the world that are largely untouched [...] Protected Areas? With an area of 2.2 million square kilometres, the Weddell Sea MPA ( area west of the Prime Meridian ) would be the largest MPA in the world. The declared goal of the United Nations is to protect [...] exploration of the southern continent and its waters for all time. To define more precisely how the living resources of Antarctic waters could be used, the Convention on the Conservation of Antarctic Marine

important glance into the future and at the same time one of the most central tools of climate research. The better these models reproduce the natural processes in the climate system, the more accurate and [...] Models: Images of the future Prof. Dr Thomas Jung, head of the Climate Dynamics section, spokesperson of the research programme "Changing Earth - Sustaining our Future" and Vice Director of the Alfred Wegener [...] participate in the international model comparison for the 6 th Assessment Report of the Intergovernmental Panel on Climate Change for the first time in the past three years. The results of these CMIP6 climate

. Only a small part of it sticks out of the water, like the tip of an iceberg. By far the largest portion of the rock is submarine. The transitional zone between the island and the submarine is a rocky [...] Schmalenbach is tipping the contents of hundreds of small beakers over the railing of the “Aade” into the sea: hundreds of small lobsters which were raised in the laboratory. The onlook- ers in the unique Helgoland [...] signal of the algae on the rocky intertidal is recorded. Each pixel represents the colour spectrum of visi- ble light up to the infrared range. With the help of the characteristic reflection of the individual

such as the icebreaker Polarstern , observatories, aircrafts, and satellites to capture the evolving dynamics of the ocean, atmosphere, sea ice, and ice sheets. At the same time, we push the boundaries [...] critical insights into the past, present, and future of our planet. In cooperation with our colleagues in the Bio- and Geosciences, our research extends to investigating the impact of climate change on marine [...] these processes – especially in the rapidly changing polar regions where the changes have far-reaching implications, such as global sea level rise – is at the heart of our research. We strive to understand

comparison to the area of permafrost? What is the extend of these elements of the cryosphere – also in relation to the country of Germany? The back of the wooden tiles are revealing the result and some [...] A survey at the beginning of the event showed that the topic was new to most participants but of great interest, and also that not all of them were located in the area of Berlin (one even in Luxembourg [...] them to relate to. With the help of the resources provided by the Ralf Dahrendorf Prize, we will overcome that distance by showing interested members of the general public the broad landmasses that are

research topics or explore the conflict of interests of different Arctic stakeholders. Lesson Plan Permafrost in the Arctic Living in the wild North The Permafrost Risk The Ocean Race Summit Dr. Rebecca [...] and thematic perspectives. Different questions discuss the situation in the High North: What characterizes the Arctic environment? What changed in the Arctic over the last decades? What is permafrost? How [...] Outreach Lesson Plan "Permafrost in the Arctic" The lesson plan “Permafrost in the Arctic” explores the subject of degrading permafrost and its effects on men and environment from different spatial and