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Earth Hour

(credit: CBS)

Millions Expected To Take Part In “Earth Hour”

Earth Hour is 8:30 to 9:30 Saturday night — and there will be a number of local efforts.

03/29/2014

(Credit: Getty Images)

PECO Building Powers Down Saturday Night In Honor Of ‘Earth Hour’

At 8:30 p.m. Saturday, many cities and towns around the globe will be observing Earth Hour. It was created by the World Wildlife Fund to raise awareness about climate change.

03/23/2013

Earth Hour 2011 Pakistan GETTY DL

Global Initiative To Call Awareness To Global Warming Tonite

Earth Hour is one hour out of the year where people turn off all their electricity.

03/26/2011