Michael Previdi is a Lamont Associate Research Professor at the Lamont-Doherty Earth Observatory of Columbia University. He holds a B.S. degree in Meteorology and a Ph.D. in Environmental Science, both from Rutgers University. Following the completion of his Ph.D., Mike stayed on at Rutgers for one more year as a Post Doctoral Associate in the Institute of Marine and Coastal Sciences, where he studied the effects of North Atlantic Oscillation variability on the air-sea exchange of CO2. Mike then did a second postdoc at the Lamont-Doherty Earth Observatory, where he focused on the response of the global hydrological cycle to different anthropogenic forcings. In 2010, Mike entered the Lamont Research Professor track at the assistant level, where he subsequently published several papers on the global hydrological cycle, climate sensitivity, and stratospheric ozone effects on climate. He was promoted to Lamont Associate Research Professor in 2015. Mike’s latest research is focused on the causes of Arctic amplification in climate models and observations.