The world's most famous office building is reaping the benefits of its innovative energy efficiency programme with a saving of almost $3m in 2013.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/empire-state-building-takes-energy-efficiency-new-heights
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/edie-uk
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/buildings
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-efficiency
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/new-york
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us