As a multibillion-dollar environmental effort gets underway, the state has to figure out what the landscape used to look like. Ninety-seven percent of the original wetlands in the inland delta near the San Francisco Bay are gone, so California is turning to historians for help.
Over the past 27 years, Australia's Great Barrier Reef has lost half of its live coral cover, and a type of starfish is partly to blame for the alarming decline. Mark Eakin, head of NOAA's Coral Reef Watch program, discusses how to save the world's largest coral reef system.
Fortified peanut paste saves lives in Haiti and other places where malnutrition is a problem, but producing it locally costs more than importing it from faraway factories in Europe because of labor and other costs. Still, feeding programs are willing to pay a little more, for now.
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