studies in biology at the University of Bremen and then returned to the AWI and especially to the labs. Here, the supervision of our microalgal stock culture collection, the realization of lab experiments on [...] content are also part of the spectrum of my tasks in the group, besides the preparation of expeditions and ordering logistics. "What will happen tomorrow?" is an important question for me, not just regarding [...] faster than the global average. The influx of warm Atlantic water and the rapid melting of glaciers, releasing sediments and freshwater, make Svalbard a unique place to study the effects of climate change

exchange, the rise and the lowering of the cage needs sufficient stops to prevent barotrauma of the fish. The sea bass can tolerate temperatures in the North Sea, but the average temperature of 10 ° C in [...] flow velocities of 5-10 cm s -1 for optimal nutrient and CO 2 exchange on the surface of the thalli, as well as for the reduction of growth of epiphyts. In strong currents, the thalli of macroalgae become [...] materials. Cod is one of the species with the highest rate of the escapees, which can have a negative impact on the wild population by cross-breeding. The extreme temperature tolerance range of -1 ° C to 23 °

sampling of the Kerguelen Plateau in the southern part of the Indian Ocean. The Kerguelen Plateau rises up 2000 m above the surrounding seafloor and hence forms an obstacle for the flow of the Antarctic [...] region in the southern Indian Ocean the complex topography of the Kerguelen Plateau, one of the world’s largest Large Igneous Provinces, has a strong influence on pathways of water masses within the Antarctic [...] information on the Cretaceous and Tertiary development of the AABW and its influence on the path of the Antarctic Circumpolar Current. This in turn will allow conclusions on the development of the East Antarctic

achieve the pace of climate protection required to implement the Paris Agreement.” Prof Hugues Lantuit, Head of the Permafrost Coasts Working Group at AWI “In view of the above-average warming of the Arctic [...] shortly before the start of the COP and weakened its climate targets. At the end of October, over 2,000 scientists warned the European heads of state and government in an open letter that the discussions [...] at the German Pavilion of the Federal Government. “By contributing to the discussions and showcasing BioAgora’s work through KEN-Marine, I hope to help strengthen the visibility of the ocean in the political

AS is the (measured) specific radiocarbon activity (in Bq/gC) of the sample, AABS = 0.95·0.238 Bq/gC is the absolute specific activity of the radiocarbon standard (i.e. 95% of the activity of the OxA-I [...] contribution of source/sink process S to the seasonal variation of 14C (14Cseas,2 S , Definition 2) is the sum of the contribution of the seasonal variability of the source/sink S (14Cseas,1 S , Definition [...] seasonal cycle of atmospheric 14C. The larger the horizon- tal (or vertical) 14C difference caused by source/sink process S, the larger the contribution of process S to the component of the 14C seasonal

during tropospheric ozone minima. The ticks on the top of the figure mark the starts of the all ozone sondes. sion coincided with the top of the ozone poor air and the mean potential temperature gradient [...] Spitsbergen having been the source region of the 4.2. Source of the ozone-depleted air masses ozone depletion and so the influence of the topo- graphy of Greenland would have been irrelevant.A striking positive [...] to the ambient ozone partial spring. Measurements of the vertical distribution pressure times the rate of the air flow, was meas- of tropospheric ozone during ozone minima by ured continuously. The dependence

findings in the North Sea and start of production Start of the Trilateral Cooperation on the Protection of the Wadden Sea between Germany, the Netherlands and Denmark The member states of the United Nations [...] and therefore of a high ecological, economical and societal value. Two hotspots of biodiversity are the Dogger Bank in the north of the southern North Sea and the Wadden Sea, located along the Dutch, German [...] CLIMATE CHANGE The North Sea Surge is hitting the dunes Tourists on a walk across the mudflats FUTURE 2050 The North Sea is a marginal sea of the Atlantic Ocean with deep waters in the north and shallow

an estimate of the temporal development of the global SF6 distribution on a latitude – altitude grid, which – when integrated over the entire atmosphere – gives the temporal development of the global atmospheric [...] sinks. A total atmospheric mass of 5.1×1021g of air was used for the source estimates. Note that the inventory refers to the middle of each year, whereas the source refers to the period 1 January–31 December [...] namely the Ministry of Education and Science, Baden-Württemberg, Germany; the German Science Foundation, the German Minister of Environment; the German Minister of Science and Technology; the German

concept for the use of the caught mitten crabs. One goal is to develop a long-term financing concept for the expansion and permanent operation of the traps. Another topic will be the development of the necessary [...] feed on other crustaceans as well. In addition to the growth rate of the animals, we also focus on the digestibility of the feed. The prototype of the trap has been in Belgium since 2019 (Photo: Alfre [...] Successful control of invasive mitten crabs with an innovative trap concept The mitten crab is on the IUCN's list of the world's 100 most dangerous invasive species. In Germany, the crab is found in large

into the ice sheets of Antarctica and Greenland. Why are they important? Because information on the past composition of the atmosphere is stored in the ice. Over the decades, layer after layer of snow [...] content, the staff can determine when there were past volcanic eruptions. Another question is how the temperature developed in e.g. the Antarctic hundreds of thousands of years ago. In this regard, the water’s [...] and head of the ice-core drilling group in Bremerhaven. Since they can’t simply turn back the clock, the scientists rely on laborious measuring methods to test the ice cores. These rods of glacier ice