Ashley Ahearn
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In the past two years, more than 800,000 acres in northern Nevada have burned. The traditional sagebrush rangeland is being replaced by cheatgrass that burns hotter and more frequently.
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The National Park Service is transporting hundreds of wild mountain goats from Olympic National Park to the North Cascades in Washington state.
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As international leaders convene in Paris to talk about solutions for climate change, one tribe on the Washington coast reluctantly plans its retreat from the encroaching Pacific Ocean.
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The Forest Service is set to open more than 80,000 acres for clean, renewable geothermal power in Washington state. But environmentalists are worried about damage to streams and old-growth forests.
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Snow levels are at record lows for Washington and Oregon. That could create problems later on in the dry season when there's no more snow to feed rivers that depend on snowmelt.
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Once a booming timber area, Grays Harbor County is the site of three proposed oil terminals. The local fishing industry sees the uptick in oil movement as a big risk, with limited economic benefits.
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Earlier this month, China imposed a ban on shellfish imports from most of the U.S. West Coast after finding two bad clams. The move is hitting Washington state particularly hard. State agencies estimate businesses there are losing as much as $600,000 a week.
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Scientists are worried about the elusive members of the weasel family that live in parts of Olympic National Forest in Washington state. To see whether martens are endangered, volunteers are installing remote camera traps to take photos of the animals.
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The U.S. Navy is in the process of renewing its permits to conduct sonar and explosive tests off the coast of the Pacific Northwest. But the recent unexplained death of a young orca who washed ashore in February has thrown a wrench in the process. Experts say injuries to the whale may indicate she was exposed to an underwater explosion or sonar testing.
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Scientists with the National Oceanic and Atmospheric Administration are working to prevent outbreaks by tracking when and where red tide in Puget Sound will happen next.