Executive Director, Community and Environmental Responsibility, Aspen Skiing Company. He is responsible for improving the company's environmental performance at Aspen Ski Company (ASC). ASC, which has won over thirty national and international awards for its environmental work, is widely considered to be the environmental leader in the ski industry. ASC is the only ISO 14001 certified ski resort in the U.S. and the only resort to have joined the Chicago Climate Exchange, a voluntarily carbon emissions cap and trade program. He was previously research associate in corporate sustainability at Rocky Mountain Institute, a resource policy think tank, where he managed an environmental audit of World Bank Headquarters and helped research the book Natural Capitalism. His writing on sustainable business and life in the West has been published in Harvard Business Review, the Journal of Industrial Ecology, Rock and many other journals.