Is 'Earth Hour' a good idea?

Victor

Earth Hour is about raising awareness about protecting the environment. One hour may not make a lot of difference in electricity consumption overall, but one hour synchronized around the globe can have a ripple effect on introducing environmental sustainable energy.

Students sign their name on a bulletin board for the Earth Hour movement at a primary school in Lin'an, East China's Zhejiang province,on March 28, 2015.[Photo/CFP]