Earth Hour 2014 is scheduled for Saturday, March 29. From 8:30 p.m. to 9:30 p.m. millions of people all over the world will turn off their non-essential lights for one hour as a symbol for their commitment to the planet.
Earth Hour movement throughout the years
Earth Hours of previous years in this photo gallery by ITAR-TASS
Photo {{sliderIndex+1}} from 13
Earth Hour was started as a lights-off event in Sydney, Australia in 2007 Photo: Earth Hour 2008 in Sydney
© EPA/JAMES ALCOCK - HANDOUT Sydney Harbor Bridge and Sydney Opera House illuminated by lights top, then seen with the lights turned off
© AP Photo/Mark Baker Central London during Earth Hour 2009
© AP Photo/Lefteris Pitarakis People look on holding candle lights as other play soccer, at a beach outside Cape Town, south Africa, 2010
© AP Photo/Schalk van Zuydam Malaysia's landmark, the Petronas Twin Towers along with other buildings before and after the lights were switched off
© EPA/SHAMSHAHRIN SHAMSUDIN Sand artist gives finishing touches to the 'Save Earth and Save Power' sand sculpture, 2010
© EPA/STR A girl holds a candle to mark the Earth Hour in India, 2011
© AP Photo/Rajanish Kakade Barcelona
© EPA/J.M.GARCIA Berlin landmark the Brandenburg Gate before Earth Hour 2012
© AP/Clemens Bilan/dapd Moscow switched off the lights in 2013. Photo: Kremlin with the lights off
© ITAR-TASS/Sergei Bobylev Earth Hour 2013 in Saint Petersburg
© ITAR-TASS/Yelena Palm