I'm a climate scientist. Most of my work is focussed on the oceans, their physics, biology, chemistry and variability on decadal to millennial time scales. I try to understand the causes for today's global deep overturning circulation, how and why it has changed in the past, how it may change in the future due to natural or human influences, how it impacts climate, ecosystems and biogeochemical cycles including isotopes. I received a PhD in physics in 1999 from Bern University, Switzerland. Since 2005 I've been at the College of Earth, Ocean, and Atmospheric Sciences at Oregon State University.
