The Importance of Renewable Energy Systems to LEED Certification and Sustainable Market Transformation: This presentation provides tools and resources along with a look at the importance of renewable energy systems to LEED certification and sustainable market transformation. It includes a the case for sustainability through a brief history beginning with the 1973 oil embargo, a review of global carbon dioxide (CO2) emissions by sector (buildings, transportation, and industry), a U.S. Green Building Council (USGBC) and LEED update, and how it all fits together.