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  • What is Climate Change

We investigate climate change thatis related to interactions (feebacks) between the ocean and atmosphere. Most relevanton interannual time scales is the  El Niño/Southern Oscillation (ENSO), while on longer decadal time scales the Pacific Decadal Oscillation (PDO) and the North Atlantic Oscillation (NAO) are both important. These kinds of climate variability must be taken into account  when addressing questions related to  global environmental change.  Examples of  questions about such climate variability are:

• How has the frequency of ENSO changed over time?
• Have El Niño events always occurred?
• Does the PDO modulate the amplitude and frequency of El Niño?
• What was the impact of ENSO and related climate change (teleconnections) on humans through the Holocene?
• Something about the NAO?

Faculty

Hal Borns, Fei Chai, Karl Kreutz, Kirk Maasch, Paul Mayewski and Dan Sandweiss.

Research

Geochemical signature of El Niño in mollusks Dan Sanweiss, Kirk Maasch

Geoarchaeological Evidence for Multi-decadal Pacific Climate Change
Dan Sandweiss, Kirk Maasch, Fei Chai

Aquaculture-based calibration of the M. edulis isotope paleothermometer
Karl Kreutz, Hal Borns, Doug Introne

Contributions to Science

El Niño: Changes through time
Dan Sanweiss, Kirk Maasch