Coal miner Dennis Ferrell watches over conveyer belts carrying coal out of a mine in Welch, W.Va. Climate talks in Paris are focused on moving away from coal in hopes of protecting the environment. David Goldman/AP hide caption

toggle caption David Goldman/AP

That black triangle icon is a sodium warning label next to a dish on the menu at an Applebee's in New York City. Starting Tuesday, the city's Health Department is requiring chain restaurants with 15 or more locations to display the salt shaker icon next to menu items containing 2,300 mg or more of sodium — the recommended daily limit. Jewel Samad/AFP/Getty Images hide caption

toggle caption Jewel Samad/AFP/Getty Images

Cascara is made by brewing dried coffee cherries, which typically would have otherwise ended up as compost. "We have been throwing away this perfectly good coffee fruit for a long time, and there's no real reason for it, because it tastes delicious," says Peter Giuliano, of the Specialty Coffee Association of America. Murray Carpenter for NPR hide caption

toggle caption Murray Carpenter for NPR

Thad Wimberly, left, and Jonathan Berry inspect the damage to a field of peanuts following record rainfall and flooding in Branchville, SC., in October. Wimberly said he expects to lose 75 percent of his crop. Adam Beam/AP hide caption

toggle caption Adam Beam/AP

Cocoa pods in Ivory Coast, one of the world's top producers of cocoa. Climate models suggest that West Africa, where much of the world's cocoa is grown, will get drier, which could affect supply. Issouf Sanogo/AFP/Getty Images hide caption

toggle caption Issouf Sanogo/AFP/Getty Images

(Top) A worker at Blue Creations prepares a pair of blue jeans for a crinkle effect known as "3-D whiskers." (Bottom) Employees at Blue Creations apply the destruction/distressing process to jeans by sanding, ripping and tearing them on molds. John Francis Peters for NPR hide caption

toggle caption John Francis Peters for NPR

Chef Michael Cimarusti, of Los Angeles' Providence restaurant, is pioneering the West Coast incarnation of Dock to Dish, a program that hooks up local fishermen directly with chefs. Courtesy of Providence hide caption

toggle caption Courtesy of Providence

President Obama (from left), French President Francois Hollande and Microsoft co-founder Bill Gates applaud a speech during the Mission Innovation event at the UN conference on climate change Monday in Paris. Jim Watson/AFP/Getty Images hide caption

toggle caption Jim Watson/AFP/Getty Images

Imported from Europe, the custom of leaving gratuities began spreading in the U.S. post-Civil War. It was loathed as a master-serf custom that degraded America's democratic, anti-aristocratic ethic. Hulton Archive/Getty Images hide caption

toggle caption Hulton Archive/Getty Images

A view of the opening of COP21 on climate change Monday in Paris. More than 150 world leaders are meeting for the 21st Session of the Conference of Parties to the United Nations Framework Convention on Climate Change. Patrick Aventurier/Getty Images hide caption

toggle caption Patrick Aventurier/Getty Images

A power-generating windmill turbine is seen in front of the Arc de Triomphe on the Champs Elysees avenue in Paris ahead of the COP21 World Climate Summit, which begins Monday. Christian Hartmann/Reuters /Landov hide caption

toggle caption Christian Hartmann/Reuters /Landov

President Obama (center) and Secretary of State John Kerry (right) attend Monday's opening ceremony of the United Nations Climate Change Conference in the Paris suburb of Le Bourget. Thibault Camus/AP hide caption

toggle caption Thibault Camus/AP