Elizabeth Shogren Elizabeth Shogren is an NPR News Science Desk correspondent focused on covering environment and energy issues and news.

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Guided by biologists, volunteers briefly catch, band and release some of Delaware's visiting red knots each spring to monitor the health of the species. Maggie Starbard/NPR hide caption

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Maggie Starbard/NPR

Shifts In Habitat May Threaten Ruddy Shorebird's Survival

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States Say Cutting Down On Carbon Was Easier Than Expected

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White House Report Says Climate Change Is Here And Now

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Concerns Raised Over Exporting Liquefied Natural Gas

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High Court Ruling Revives Law Against Out-Of-State Pollution

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A sign at the old Kerr-McGee uranium mill site in Grants, N.M., warns of radioactive material. This week, the Justice Department announced a $5 billion settlement against the mining company to pay for the cleanup of toxic sites the company left across the U.S. over a period of more than eight decades. Susan Montoya Bryan/AP hide caption

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Susan Montoya Bryan/AP

Feds Hope $5 Billion Settlement A Lesson For Polluters

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International Ruling Puts Stop To Japan's 'Scientific' Whaling

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Toxic Chemical Dioxane Detected In More Water Supplies

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The Hearts Of Fish Still Bear Scars Of Oil Spilled Years Ago

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An oiled murre passes the darkened shoreline near Prince William Sound, Alaska, less than a month after the March 1989 spill. Erik Hill/Anchorage Daily News/MCT/Landov hide caption

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Erik Hill/Anchorage Daily News/MCT/Landov

Why The Exxon Valdez Spill Was A Eureka Moment For Science

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Colorado Becomes First State To Restrict Methane Emissions

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Not all energy producers find fault with the EPA's rules. Calpine, which helped build the Delta Energy Center in Pittsburg, Calif., says the permitting regulations aren't overly cumbersome. JAKUB MOSUR/AP hide caption

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JAKUB MOSUR/AP

Industry Challenges EPA's Greenhouse Gas Rules In High Court

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Fishers are among the small carnivores threatened by rat poisons used to guard plants at illegal marijuana farms. John Jacobson/U.S Fish & Wildlife Service hide caption

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John Jacobson/U.S Fish & Wildlife Service

Illegal, Remote Pot Farms In California Poisoning Rare Wildlife

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U.S. To Ban Commercial Trade Of Elephant Ivory

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A protest of the Keystone XL pipeline last March along its proposed route near Bradshaw, Nebraska. NH/AP hide caption

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NH/AP

State Dept. Delivers Unwelcome News For Keystone Opponents

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