Dr. Sheridan's research interests include several different areas of applied climatology, mostly involving the effects of climate on humans. Through several contracts from NOAA among other agencies, he has worked on the development of heat watch-warning systems for over two dozen cities in the United States, Canada, South Korea, and Italy. With support from USEPA, he has explored public perception of and behavior during heat warnings, and has recently completed a project funded by the California Air Resources Board to examine the potential for changed frequency of heat waves in the future. Dr. Sheridan is presently working with the New York State Department of Health in assessing the relationship between weather and hospital admissions for a number of causes. Dr. Sheridan currently serves as editor-in-chief of the International Journal of Biometeorology.