The Materials Science and Technology 2009 Conference and Exhibition(MS&T'09) was held October 25-29, 2009, in Pittsburgh,Pennsylvania. A major theme of the conference wasEnvironmental and Energy Issues. Papers from three of thesymposia held under that theme are included in this volume. Thesesymposia include Materials Solutions for the Nuclear Renaissance;Green Engineering and Environmental Stewardship; and Nanotechnologyfor Energy. These symposia included a variety ofpresentations with sessions focused on sustainable energy,photovoltaics, nanowires and composites, energy harvesting,catalysts, thin films, corrosion, nuclear fuels, materials inaggressive environments, glass and ceramics for waste disposition,modeling and thermal properties, and education. Also includedwas a series of invited presentations and an international paneldiscussion on cement waste forms.The Green Engineering and Environmental Stewardship symposiumwas sponsored by the Nuclear and Environmental Technology Division(NETD) of The American Ceramic Society while the MaterialsSolutions for the Nuclear Renaissance symposium was sponsored byNETD and ASM International.