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

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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

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Climate models project 21st century global temperatures. NASA's Scientific Visualization Studio and NASA Center for Climate Simulation hide caption

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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

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A building called Sustainability Base, at NASA's Ames Research Center in Mountain View, Calif., has an energy-efficient design that allows in sunlight. So for most of the year, the interior is illuminated by natural light. Dominic Hart/NASA hide caption

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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

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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

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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

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