Oil, carried here by the Trans-Alaska Pipeline, is fundamental to the state's economy. But Alaskans also face the effects of climate change in their daily lives. Al Grillo/AP hide caption

itoggle caption Al Grillo/AP

John Harris makes a weld for a test during a welding class at Spartanburg Community College in Spartanburg, S.C., on Oct. 22. Mike Belleme for NPR hide caption

itoggle caption Mike Belleme for NPR

Berkeley's efforts to pass a penny-per-ounce tax on sugary drinks faced opposition with deep pockets — but it also got sizable cash infusions from some big-name donors. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

In 49 U.S. states, spotting the squished disc in this spinal MRI is still much easier than learning the price of the MRI in advance. AWelshLad/iStockphoto hide caption

itoggle caption AWelshLad/iStockphoto