Arctic Ocean food web to cumulative stress by warming and anthropogenic pollution. Head of Group Dr. Doreen Kohlbach Further members of the Junior Research Group Master students Nahid Welteke Christian [...] waters, riverine input and marine traffic will bring more anthropogenic pollutants, even to remote Arctic regions, where they are entrained in water and sea ice, and transferred along the marine food [...] aims at i) assessing trophic structures and the degree of anthropogenic pollution under current environmental conditions and ii) simulating cumulative effects of warming and increasing pollution on

of the Weddell Sea, reveal a steady CO 2 increase, of likely anthropogenic origin, as surface water, charged with anthropogenic CO 2 , is a major component with the formation of WSBW (Van Heuven et al. 2011). The findings reflect the deep-sea sequestration of anthropogenic CO 2 , thus contributing to diminishing the burden of excess CO 2 in the atmosphere. The largest increase is found for NC T in [...] (Van Heuven et al. 2014). Here, uptake of excess CO 2 , i.e. anthropogenic CO 2 , from the atmosphere has obviously occurred. Fig. 7: Ocean temperatures for multiple years along the Greenwich meridian

Global Carbon Budget - Ocean Accurate assessment of anthropogenic carbon dioxide (CO 2 ) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere – the “global [...] . The oceans are therefore the most important net sink for anthropogenic CO 2 emissions. The ocean in the Global Carbon Budget Less than half of all CO 2 emissions remain in the atmosphere, the other [...] . The oceans are therefore the most important net sink for anthropogenic CO 2 emissions. Each year, we collect estimates of the ocean carbon sink from global ocean biogeochemistry models (GOBMs) and

Anthropogenic impacts on particulate organic carbon cycling in the North Sea [Translate to English:] Automatisierte in-situ Messung durch ein [...] of particulate organic carbon within the North Sea and how anthropogenic activities might alter the potential for carbon sequestration in marine sediments. Sediments deposited on the seabed represent [...] processes is limited especially in the North Sea. Additionally, anthropogenic activities, such as bottom trawling, can alter POC sedimentation, releasing the deposited carbon again to the water column.

A research team from the Alfred Wegener Institute (AWI) is now researching on board of the science and outreach sailing yacht Malizia Explorer how incoming Atlantic Water spreads through the Kangertittivaq fjord systems on the east coast of Greenland and how noises from ships affects underwater life in the fjord.

Ocean Acoustics
Due to construction work in the sea, shipping, and gas and oil extraction, the oceans are becoming increasingly louder. A comprehensive international study has now shown that this noise affects the behaviour of far more animal species than previously assumed. The researchers call for us to listen closely to the ocean and to finally regulate noise worldwide. Viable technological solutions are already available.