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The paper industry struggled in the last decade, but some sectors have fared better than others. Christopher Groskopf/NPR hide caption

itoggle caption Christopher Groskopf/NPR

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A blind visitor to Spain's Prado Museum runs his fingers across a 3-D copy of the Mona Lisa, painted by an apprentice to Leonardo da Vinci. The 'Touching the Prado' exhibit features 3-D versions of the museum's most famous works. Ignacio Hernando Rodriguez/Courtesy of Prado Museum hide caption

itoggle caption Ignacio Hernando Rodriguez/Courtesy of Prado Museum

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Thacher Brown stands at the edge of the dune behind his Bay Head, N.J., home on Nov. 25, 2014. Brown rebuilt a dune in front of his house after Superstorm Sandy and opposes Gov. Chris Christie's plan to widen beaches and build dunes along the state's 127-mile coastline. Wayne Parry/Associated Press hide caption

itoggle caption Wayne Parry/Associated Press