natural Holocene polar climate variability is a key to determine the range of plausible future anthropogenic climate change. My Ph.D. project aims at improving our understanding of the climate signal and

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

and heats the stratosphere. Thus changes in the atmospheric circulation and in the emission of anthropogenic substances that affect the abundance of ozone in the atmosphere have direct effects on the global

W.-J. von Appen, 2016: Transient tracer distributions in the Fram Strait in 2012 and inferred anthropogenic carbon content and transport, Ocean Science, 12, 319–333; dx.doi.org/10.5194/os-12-319-2016

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

bottom waters of the Weddell Sea, reveal a steady CO 2 increase of anthropogenic origin, as surface water charged with anthropogenic CO 2 is a major component in the formation of WSBW (Van Heuven et al [...] 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 of CO 2 is found in [...] in the surface layer (Van Heuven et al. 2014). Here, uptake of excess CO 2 , i.e. anthropogenic CO 2 , from the atmosphere has obviously occurred. Somewhat surprisingly, steady state tracer oxygen shows

feasibility of geoengineering projects in order to adapt to possible future climate change due to anthropogenic influence. Website OC3: www.marum.de/en/Research/Project-OC3.html Contact: Monica Ion

strong influence of humans on the natural conditions. To understand the climate system prior to anthropogenic influence, we have to follow another path and employ methods of paleoclimatology. Proxies provide

and biological pumps of carbon will shift in future, hence whether changes in climate due to anthropogenic greenhouse gas emissions will be amplified or dampened. As physical oceanographers we are inv [...] that the Weddell Sea bottom water became warmer during the last decades, and that its content of anthropogenic CO2 increased continuously; by detailed investigations it could be shown that the densest part

The North Sea is one of the most heavily used seas in the world. Shipping, fishing and other anthropogenic activities have substantial effects on natural ecosystems, while also influencing the North Sea’s