Earth system science is traditionally split into various disciplines (Geology Physics
Meteorology Oceanography Biology etc.) and several sub-disciplines. Overall the diversity of
expertise provides a solid base for interdisciplinary research. However gaining holistic
insights into the Earth system requires the integration of observations paleoclimate data
analysis tools and modeling. These different approaches of Earth system science are rooted in
various disciplines that cut across a broad range of timescales. It is therefore necessary to
link these disciplines at a relatively early stage in PhD programs. The linking of 'data and
modeling' as it is the special emphasis in our graduate school enables graduate students from
a variety of disciplines to cooperate and exchange views on the common theme of Earth system
science which leads to a better understanding of processes within a global context.