Session on ocean acidification, eutrophication and hypoxia at the 25th Goldschmidt Conference, Prague, 16-21 August 2015

The session is entitled “Anthropogenic Impacts on Coastal Geochemistry: Acidification, Eutrophication and Hypoxia”.

The abstract submission has been opened now, until April, 2nd, 2015.

The oceans’ coastal zones face strong and rapid changes, forced by a combination of multiple human-driven stressors, including eutrophication and anthropogenic CO2-induced changes. In addition the coastal zones are subject to highly variable, often intense, natural forcings, such as storms and floodings. Synergistic effects could exacerbate the impacts of these stressors, resulting in significant changes in biogeochemical and ecosystem conditions. For example, in recent years, widespread eutrophication not only leads to coastal hypoxia with increasing extent, frequency, duration and intensity, but also enhances ocean acidification. Moreover, changes in water cycle and stratification due to warming may have significant implications for both hypoxia and acidification at different time scales. In contrast to the open ocean, sedimentary processes play a major role in regulating coastal geochemistry, such as redox conditions and trace metal cycling, which are affected by both hypoxia and acidification. We welcome contributions addressing the causes and consequences of anthropogenic impacts on coastal geochemistry, especially acidification and hypoxia.

Keynote lecturer in session opening: Dr Wei-Jun Cai, Univ. of Delaware, US

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