I am a marine biogeochemist, working on the nitrogen cycle, and especially on the processes that produced the greenhouse gas and ozone depleting agent, nitrous oxide. This work is relevant, for instance for understanding the controls on aquatic nitrous oxide production and how to mitigate its emissions. Nitrous oxide is almost 300 times more effective in trapping heat in the atmosphere than carbon dioxide, and since the Industrial Revolution, the N2O atmospheric concentration has been increasing at an unprecedented rate. N2O is likely to be the single most important anthropogenically emitted ozone-depleting agent in the 21st century.
I am working in natural and anthropogenically impacted environments, like the Baltic Sea, Chesapeake Bay and the large oceanic oxygen minimum zones (called OMZs) in the eastern tropical north and south Pacific to understand what factors influence the N2O cycling processes and the communities and why. The oceans represent significant N2O sources,accounting for more than one third of all natural emissions and this source may increase substantially as a result of eutrophication, warming, and ocean acidification.
Dr. Claudia Frey
Biogeochemistry / University Basel
Bernoullistrasse 30
CH-4056 Basel
Tel. +41 (0)61 207 35 96
email: claudia.frey-at-unibas.ch
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