Will You Go Dark For Earth Hour? ‎

Don't be alarmed at 8:30pm this evening, March 26, if you happen to notice the Empire State Building, the Eiffel Tower, and hundreds of other world landmarks blacked out. 

The 60-minute long power outages, 8:30 to 9:30 p.m, are because of Earth Hour 2011.

Earth Hour is a global event, where households and businesses turn off their non-essential lights and other appliances for one hour.

The event's goal is to raise awareness towards the need to take action on climate change.

Some Earth Hour events this year will hold a minute's silence to mark the devastating 9.0-magnitude quake and subsequent tsunami in Japan.