Barrett N. Rock is associate professor in the Institute for the Study of Earth, Oceans and Space and the Natural Resources Department at the University of New Hampshire. His research activities focus on assessing the impact of air pollution (ozone, NOx/SOx, acid precipitation) on forest tree species, both at the cellular level and at a regional scale. He makes extensive use of earth-orbiting satellite data (Landsat, SPOT) to monitor and map forest damage caused by air pollution and has research study sites in several northeastern U.S. states, in three central European countries, and in Siberia. In 1992 Professor Rock developed the K-12 educational outreach program Earth Day Forest Watch. As Boreal Forest Watch, this program is being expanded to other northeastern states as well as Canada. In 1994 Professor Rock became the first senior scientist for the GLOBE program in Washington, D.C., where he assisted in development of the GLOBE science protocols and education activities introduced on Earth Day 1995.