U-M researchers at the School of Natural Resources and Environment will analyze the results of surveys given to about 120 veterans before and after upcoming six-day excursions. While scientific research increasingly shows a strong link between mental health benefits and the natural environment, the Sierra Club wanted to know if its programs, which are offered for free or at reduced costs, were producing the same results. Coordinating the research work at SNRE are Rachel Kaplan, the Samuel Trask Dana Professor of Environment and Behavior, and research scientist Jason Duvall.