What will you be doing at 8:30 p.m. on March 29? The World Wildlife Fund encourages you to turn off your lights then—for a full hour! Join in this annual event called Earth Hour to help raise awareness about environmental impact and sustainability.
Earth Hour was started by WWF Australia in 2007 as a collective activity to draw attention to climate change. The movement aimed to encourage people to consider the link between their everyday actions, like turning on lights indoors, and environmental issues like electricity usage, greenhouse gas emissions, and climate change. Since 2007, the event has grown to include the engagement of over 7000 cities and towns worldwide, and famous monuments like the Sydney Opera House (in Sydney, Australia), the Empire State Building (in New York City, NY, USA), and the Golden Gate Bridge (in San Francisco, CA, USA) have participated by going dark during Earth Hour as well.
Though the event is primarily intended to be symbolic, when large numbers of people choose to switch off their lights at the same time, there is a resulting decrease in electricity usage. In past Earth Hours, certain cities have managed to decrease their electricity demand by as much as 10% during that time. When demand is lowered, less electricity needs to be generated through unsustainable methods, which results in less carbon dioxide and other harmful greenhouse gases being released into the atmosphere.
Before observing Earth Hour this weekend, be sure to visit the Earth Hour website and take a look through the resources in our Earth Hour collection. And then on March 29 at 8:30 p.m. your time—it's lights out!
Image credit: Earthhour.org
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