Climate Geochemistry

Climate Geochemistry

The nitrate concentration of the oceans around the antarctics. Graphics: Gerald H. Haug, MPI for Chemistry.

Dr. Gerald H. Haug, Prof. of ETH Zürich

The department addresses climate-ocean-atmosphere processes - from 'geologic' to annual timescales. The climate system has many interacting components and thresholds. Changes in internal feedback loops such as changes in ocean-atmosphere interactions, the oceanic heat transport, the oceanic nutrient reservoir, the nutrient status of the high latitude surface ocean and its effects on atmospheric greenhouse gases amongst many others amplify modest external forcing mechanisms and ultimately alter climate on different timescales. Periods of interest include much of the Cenozoic, the past 65 million years, including the Pliocene thermal maximum some 3 million years ago, which is the youngest geologic analogue of a 400ppm CO2 world – the same amount as today due to anthropogenic activities.

One focus is biogeochemical processes in the polar oceans and their role in regulating atmospheric CO2 concentration between ice ages and warmer periods. To quantify the mechanisms and causes of such major changes in the environmental conditions of the Earth, we use diverse geochemical methods, including light stable isotopes of foraminifera and organic matter, biomarkers, trace metals, and high-resolution non-destructive analytical techniques such as scanning XRF. We pursue diverse archives, including sediments from the open ocean, isolated marine basins, freshwater lakes, and speleothems.

Members Climate Geochemistry

Aardema, Hedy
  • +4961313057502
Aquino, Andrea
Arns, Anthea
  • +4961313056401
Auderset, Alexandra
  • +4961313056716
Calleja, Maria
  • +4961313057502
Krishna Dave, Aditi
  • +4961313054121
Duprey, Nicolas
  • +4961313056715
Engstrom-Johansson, Alexandra
Farmer, Jesse
  • +4961313056401
Fischer, Alexa
  • +4961313056401
E. Fitzsimmons, Kathryn
Group Leader
  • +4961313056600
Foreman, Alan, Ph. D.
  • +4961313056305
Fripiat, Francois
  • +4961313056615
Galer, Steve
Group Leader
  • +4961313056603
Guinoiseau, Damien
  • +4961313056601
Hamann, Yvonne
  • +4961313056110
Hartstock, Sophie
Haug, Gerald
Scientific member (Director)
  • +4961313056002
Hettwer, Felix
Hinnenberg, Barbara
  • +4961313054130
Janssen, Renee
  • +4961313054822
Jochum, Klaus
Group Leader
  • +4961313056701
Kaiser, Viktoria
Khanolkar, Sonal
  • +4961313056607
Koller, Pauline
Körner, Martin
  • +4961313051800
Levy, Elan
  • +4961313056609
Levy, Noy
Markowska, Monika
Marquer, Laurent
  • +4961313054121
Martinez-Garcia, Alfredo
Group Leader
  • +4961313056717
Moretti, Simone
  • +4961313054131
Nowatzki, Maike
Ogretmen, Nazik
  • +4961313056607
Oliveira, Carina
  • +4961313056000
Pellio, Carolin
Peric, Zoran
  • +4961313056305
Pichat, Sylvain
  • +4961313056601
Prudhomme, Charlotte
  • +4961313054121
Repschläger, Janne
  • +4961313056307
Rubach, Florian
  • +4961313054128
Schiebel, Ralf
Group Leader
  • +4961313054100
Schmitt, Mareike
  • +4961313054129
Schroeder, Julian
Slagter, Hans
  • +4961313057502
Stoll, Brigitte
  • +4961313056703
Studer, Anja
Vonhof, Hubert
Group Leader
  • +4961313056605
Wald, Tanja
  • +4961313056715
Walter, David
  • +4961313057802
Wassenburg, Jasper
  • +4961313054822
Weis, Ulrike
  • +4961313056704
Welling, Michael
  • +4961313056406
Zhao, Ning
  • +4961313056307
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