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Fun Facts
  • There are 478 properties included in the City of Rockville’s 2011 publication, Historic Buildings Catalog. Only one-third of these properties are designated in the City’s historic preservation program. But all city properties can benefit from enhanced sustainability measures.
  • A conservative estimate is that construction, operation and demolition of buildings account for 39 percent of the United States’ greenhouse emissions [US Green Building Council]
  • Long-term energy costs are much lower in buildings that have been retrofitted with sustainable technologies.
  • The United States hosts only 5 percent of the world’s population, but Americans consume 26 percent of the world’s energy [“Human Population Reaches 7 Billion” by David Biello, Scientific American, 10/28/2011].