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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Zion National Park, Utah
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An oceanic valentine
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Longs Peak, Rocky Mountain National Park
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Dark Sky Week
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Teacher Appreciation Day
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Relationship status: It s complicated
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Raise your hand for Teacher Appreciation Day
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Dyavolski Most
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A bull, some flowers, and a stratovolcano
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Boxing Day in East Yorkshire, England
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World Laughter Day—it s a hoot
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Rock of ages
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Lighting the way to new beginnings
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Tennis in the park
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Spring comes to Glacier National Park
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World Honey Bee Day
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The old guard at Old San Juan
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Gem State views
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Jazzed for Mardi Gras
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Too awesome to be a planet
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Sparkling ice diamonds on a black sandy beach
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Look to the north sky tonight for the Perseids
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Fall color sweeps across the West
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Water colors
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Cecropia leaf and lobster claw petals in Mexico
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National Park Week begins
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Cetacean Saturday
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Mid-Autumn Festival
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Art Basel Miami Beach
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Gray days ahead in Monterey