An introductory course focused on the new and existing materials that are crucial for mitigating worldwide anthropogenic CO2 emissions and associated greenhouse gases. Emphasis will be placed on how materials science is used in energy technologies and energy efficiency; including solar power, cements and natural materials, sustainable buildings, batteries, water filtration, and wind and ocean energy. Topics include: atomic structure and bonding; semiconductors; inorganic oxides; nanomaterials; porous materials; conductive materials; membranes; composites; energy conversion processes; life-cycle analysis; material degradation.