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After a 4.5-magnitude earthquake was recorded near Cushing in October 2015, Oklahoma state regulators ordered oil companies to shut down several disposal wells. Joe Wertz/StateImpact Oklahoma hide caption

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Los Angeles is a sprawling metropolis, and it was poised to become a manufacturing giant because of its unique geography. John Francis Peters for NPR & Shereen Marisol Meraji/NPR hide caption

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From the Scenic Seward Highway in the Chugach National Forest, Alaska to the streets of Washington, D.C. — this year's Capitol Christmas Tree made quite the journey. Carol M. Highsmith/Buyenlarge/Getty Images hide caption

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Rosa Parks joins in a march at the South African Embassy in Washington, Dec. 10, 1984, protesting that country's racial policies. She's famous for refusing to give up her seat on a bus in 1955, sparking the Montgomery boycotts — but her activism spanned her entire life. AP hide caption

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A demonstrator kicks a tear gas canister during clashes with riot police near the Place de la République after the cancellation of a planned climate march. Eric Gaillard /Reuters /Landov hide caption

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Britain's Tyson Fury celebrates after winning in a world heavyweight title fight for Ukraine's Wladimir Klitschko's WBA, IBF, WBO and IBO belts in the Esprit Arena in Duesseldorf, western Germany. Martin Meissner/AP hide caption

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Demonstrators do push-ups Friday as others block motorists along Chicago's Michigan Avenue as they protest the shooting of Laquan McDonald who was killed by a police officer in 2014. Joshua Lott/Getty Images hide caption

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Oranges ripen in a grove in Plant City, Fla. Citrus greening, a disease spread by a tiny insect that ruins oranges and eventually kills the trees, has put the future of the state's $10 billion citrus industry in doubt. Chris O'Meara/AP hide caption

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A woman carries a French flag during a ceremony in Paris on Friday honoring those killed in the Nov. 13 attacks. French President Francois Hollande has encouraged the French people to display flags, something they don't often do. Thibault Camus/AP hide caption

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Coal fires burn early in the morning in January 2014 at a privately owned coal mine in India's Jharkand state, making the air dense with noxious smoke and dust. Forty percent of India's mineral wealth lies in Jharkhand. Johnny Haglund hide caption

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