In an effort to reduce energy use in buildings and to mitigate the warming effects of climate change, the Cool Roofs and Pavements Working Group formed as a subgroup within the Global Superior Energy Performance Partnership (GSEP) at the second Clean Energy Ministerial in April 2011. Through activities such as demonstration projects, the development and sharing of best practices, research to refine the understanding of the potential of cool roofs and pavements to mitigate the urban heat island effect and global warming, and the promotion of inclusion of cool roofs and pavements in building codes, the Working Group will advance policies and actions that increase the solar reflectance of urban surfaces.