environments provide essential supporting, regulating, provisioning and cultural ecosystem services. Anthropogenic stressors such as nutrient input from agriculture, pollution, sediment dumping, and user pressures

utilised seas, and in the past centuries it has undergone significant changes as a result of anthropogenic influences. The various uses have particularly affected the sea’s ecosystems: native species and

the German Advisory Council on Global Change (WBGU). IPCC Climate Change Ocean acidification Anthropogenic climate change is altering the living conditions in the ocean more dramatically than in the past

Marine Chemistry The Marine Chemistry team investigates the importance of natural and anthropogenic organic substances and nutrients in water and marine organisms and their significance for global material

both as free-living cells or attached to particles, the formation and dynamics of particles in anthropogenic coastal regions as well as industrial applications are another hot topic of our group. Algae-bacteria

shallower upper mixed layer. Secondly, there is a problem arising directly from CO 2 : As much of the anthropogenic CO 2 is taken up by the ocean, concentrations of CO2 and bicarbonate increase while the concentration

research focus is on observations of the upper troposphere and stratosphere. With little local anthropogenic influence, the PAO is ideal for comparisons with other tropical stations and to study the impact

Biological effects of marine organisms Pollutants of anthropogenic origin have also been polluting our oceans since the industrialization of the world. Coastal seas such as the North and Baltic Seas in

changes are also studied in such experiments. Large scale circulation changes as captured by anthropogenic tracers Contact: Michael Karcher The Arctic Ocean surface circulation is characterized by the [...] mark specific water masses on their paths through the Arctic. Such a tracer is 129 Iodine, an anthropogenic radionuclide which is dumped as waste into the Irish Sea and the North Sea by nuclear reprocessing

prominent and frequent hydroclimate extremes and whether there is a difference between natural and anthropogenic impact on Siberian hydrology by comparison of early Holocene and recent warming phases. To answer [...] from the Early Holocene with a similar temporal resolution, if achievable, to disentangle the anthropogenic and natural contribution. For investigations, primarily diatom-δ18O will be used to establish