(VOVworld) – Earth Hour 2013 will take place from 8:30 to 9:30 pm on Saturday, March 23^rd, when all will switch off their lights to contribute to a future sustainable environment.

Earth Hour is one of the largest environmental campaigns to call for actions to protect the earth (Photo: chapter4.rs)

The main event in Vietnam will be held in the August Revolution Square in front of the Hanoi Opera House. 2013 Earth Hour campaign will include launch ceremonies in universities in Ha Noi and Ho Chi Minh city, cycling with the campaign’s ambassador to deliver leaflets and posters at public spaces, offices, shopping centers, and condominiums.