UN Headquarters and other facilities around the world celebrated "Earth Hour" on 23 March 2013 by turning off all building lights for one hour.
The annual event, which encourages people, buildings, and cities to switch off all essential lights, raises awareness for climate change by promoting sustainable energy consumption.
23 March 2013: UN Headquarters and other facilities around the world celebrated “Earth Hour” on 23 March 2013 by turning off all building lights for one hour. The annual event, which encourages efforts to switch off all essential lights, raises awareness for climate change by promoting sustainable energy consumption. The event has been celebrated around the world since 2007.
In observation of Earth Hour, UN Secretary-General Ban Ki-moon stressed the UN’s “undimmed determination to take action on climate change.” This year, over participants from over 150 countries and territories took part. [UN Press Release] [Earth Hour Website]