Switch off for Earth Hour

Glowing with hope: The dark halls of the National Planetarium will be illuminated with candles and lanterns from 8.30pm to 9.30pm tonight.

From 8.30pm to 9.30pm today, millions of people around the world will illuminate the dark with candles and lanterns to observe Earth Hour.

The stand against abusing Mother Nature began with WWF Australia in 2007, whose lights-out move to create awareness on climate change inspired other countries to follow suit.