March 25, 2013 | 08:51
One minute brightly lit, the next plunged into darkness — iconic landmarks around the world will cut their lights Saturday for the “Earth Hour” campaign against climate change.
March 28, 2011 | 06:58
Vietnam saved 400,000 kWh of electricity, equivalent to 500 million VND ($23,809), by switching off lights during the Earth Hour, from 8.30 pm to 9.30 pm on March 26, according to the Electricity of Vietnam (EVN).