Buildings around the world will go dark for 60 minutes this evening in a voluntary event known as Earth Hour. This grassroots effort was started in 2007 in Sydney, Australia, by the Australian branch of the World Wide Fund for Nature (aka World Wildlife Fund), which encouraged Sydneysiders to show their support for climate action. Since then, it’s grown into a global movement to raise awareness of our energy consumption and the effects of climate change on our planet.
Here’s why landmarks are going dark
Today in History
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Here there be dragons
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Where fire meets water
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International Dark Sky Week
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Menton, France
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Can you see the family resemblance?
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Autumn comes to Old Town
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Instant romance
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Astronomy Day and National Public Lands Day
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Big Bend National Parks birthday
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Thorrablot: The Icelandic midwinter festival
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World Heritage Day
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A predator at risk
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Portland celebrates its bounty
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Mount Hamilton, near San Jose, California
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Mapping courage in the Seventh Ward
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Bask in the glow—It s World Turtle Day
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A long winter’s nap, perhaps?
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The Unfinished Obelisk near Aswan, Egypt
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Rays on parade
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Traffic jam on the caribou highway
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Summer winds down in the Southern Hemisphere
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Burns Night
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A giant relic in Java
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Celebrating Madagascar on its Independence Day
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Bluebells in Hertfordshire, England
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Hey, you two in the front!
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Flying high on National Bird Day
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Silvereyes in South Korea
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World Theater Day
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Composite image of a lunar eclipse
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