The Library’s Green Team–led by Librarian Kathlyn Carroll–worked to evaluate the Library's current performance in a variety of areas, including water and energy usage, purchasing decisions, and waste management. Many changes were made to Library practices, including use of LED lighting, green purchasing, waste audit tracking, and a greenhouse gas inventory. Recent renovations to the circa 1974 building greatly improved the Library’s energy efficiency, thanks to planning by the Library and the Department of Public Works for the City of White Plains.