In St. Joseph, La., it's not uncommon for brown water like this to come streaming from faucets. Courtesy of Garrett Boyte hide caption

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December brought storm clouds to the Porter Ranch neighborhood in Southern California's San Fernando Valley. David McNew/AFP/Getty Images hide caption

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Sporadic dengue fever outbreaks in Florida in 2009 and 2010 spurred mosquito control efforts in Key West and Miami Beach, shown here. The same mosquito that carries dengue, Aedes aegypti, can transmit Zika. Joe Raedle/Getty Images hide caption

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The city of Flint, Mich., may not have enough money in the future to pay for repairing broken water mains and replacing sewer lines. Brett Carlsen/Getty Images hide caption

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This San Francisco home collapsed in the 1989 Loma Prieta earthquake, which also claimed dozens of lives. ADAM TEITELBAUM/AFP/Getty Images hide caption

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An adult spirit bear crosses a fallen log over a stream in the Great Bear Rainforest in British Columbia. Barcroft Media/Barcroft Media via Getty Images hide caption

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Pallets of bottled water are seen ready for distribution in a Flint, Mich., warehouse on Jan. 21. The warehouse is the emergency water supply for Flint residents affected by lead-contaminated water. Sarah Rice/Getty Images hide caption

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Jae Rhim Lee models her mushroom burial suit at the TED conference. James Duncan Davidson/TED hide caption

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