It has been more than 50 years since observations of Arctic Haze were first reported by pilots flying in the Canadian and Alaskan Arctic. Since then, intensive field campaigns and long term measurements have provided information about the source of the haze, its chemical and physical properties, and seasonal and decadal trends. This talk will provide a summary of the short-lived pollutants that impact Arctic climate (including methane, tropospheric ozone, and tropospheric aerosols) including descriptions of the major sources, long term and recent trends, and mechanisms of climate forcing. Seasonally averaged forcing values for the Arctic and the corresponding surface temperature response will be compared for the different pollutants. Finally, strategies for reducing the warming within the Arctic due to these pollutants will be discussed as well as directions for future research.

Bio information:
Trish Quinn
1988, Ph.D. from University of Washington working with Bob Charlson
1989 – present, at NOAA PMEL (Pacific Marine Environmental Lab) working on the impact of atmospheric aerosols on climate and air quality.