Preston Chiaro joined the Westminster College Board of Trustees in 2011. Mr. Chiaro has a bachelor’s and a master’s degree in environmental engineering from Rensselaer Polytechnic Institute in Troy, New York. Upon graduation he worked for several environmental engineering consulting firms in the eastern and northwestern parts of the US. Mr. Chiaro began working at Kennecott Utah Copper in 1991 to address legacy environmental issues. In 1995, he was appointed general manager of Rio Tinto Borax's Boron operations in California's Mojave Desert. Two years later he became Borax's senior vice president for operations and technology, and in 1999 took over as president and CEO of Borax at Valencia, California. In September 2003 he moved to London to head up Rio Tinto's Energy group, which included coal and uranium mines in Australia, Namibia, and the US. In November 2007, he assumed additional responsibility for Rio Tinto’s Industrials Minerals group. In 2009 he was appointed to his current role as Group Executive for Technology and Innovation at Rio Tinto. He also sits on the company’s Investment Committee, heads its Ore Reserve and Resource Steering Committee, and is the Rio Tinto executive committee’s champion for sustainable development and climate change.