Cool roof - a roofing system that can deliver high solar reflectance (the ability to reflect the visible, infrared and ultraviolet wavelengths of the sun, reducing heat transfer to the building) and high thermal emittance (the ability to radiate absorbed, or non-reflected solar energy).
Finite Materials - finite means it can run out as opposed to infinite (not finite). Oil is a finite material.
Leadership in Energy and Environmental Design (LEED) - developed by the United States Green Building Council. This rating system is recognized as an internal green building certification system whose strategies are aimed at quantifiably improving performance across issues related to: energy savings, water efficiency, CO2 emissions reduction, improved indoor environmental quality and stewardship of resources and sensitivity to their impact. This system further allows for the comparison of similar buildings throughout the public and private sector.
Renewable Energy Certificates (RECs), also known as Green tags, Renewable Energy Credits, Renewable Electricity Certificates, or Tradable Renewable Certificates (TRCs), - tradable, non-tangible energy commodities that represent proof that 1 megawatt-hour (MWh) of electricity was generated from an eligible renewable energy resource (renewable electricity).
Rills, or narrow canals, wind through a backyard garden adding ambiance and the pleasant sound of running water. Formal rills are made of concrete or masonry and typically employ one type of flower for an elegant effect. Informal rills are similar to natural brooks. Water loving plants, such as irises, are planted along edges lined with stone.
STARS Report (Sustainability Tracking, Assessment, and Rating System) - a report submitted to the Association for the Advancement of Sustainability in Higher Education (AASHE).
Urban Heat Island - An urban heat island (UHI) is a metropolitan area which is significantly warmer than its surrounding rural areas