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The National Park Service released a report on climate change in the Grand Canyon that projects a warmer, drier future for the iconic national park.
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Coconino County has one confirmed case of measles and another probable case. Health officials urge residents to be alert for symptoms of the highly contagious illness, which has no treatment but can be prevented by a vaccine.
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The Coconino County Flood Control District will present a pair of studies to its Board of Directors Tuesday that forecast the risks of post-wildfire floods in the Rio de Flag watershed in Flagstaff.
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The Arizona Department of Housing awarded $2 million to an Indigenous-led, Utah-based nonprofit to address housing needs on the Navajo Nation. It’s the first time money from the state’s housing trust fund has been allocated to a nonprofit group.
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A new children’s book tells the story of a young farmhand–turned–astronomer named Clyde Tombaugh who spotted Pluto from Flagstaff’s Lowell Observatory. Sedona author Diane Phelps Budden hopes it will inspire children to chase their dreams.
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The U.S. Bureau of Reclamation released a draft plan Wednesday responding to the invasion of nonnative, predatory fish in the Colorado River below Glen Canyon Dam.
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The Forest Service recently released a proposal to revise its forest management plans to protect old-growth trees. KNAU spoke about this unprecedented effort with Andrew Sanchez Meador, executive director of NAU's Ecological Restoration Institute.
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A new report from the U.S. Geological Survey and the Havasupai Tribe identifies Tribal concerns about exposure to uranium mining in the Grand Canyon watershed.
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A new study from Northern Arizona University found redwood trees burned by wildfires can draw on century-old carbon reserves to re-sprout.
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Homes on the Navajo and Hopi Nations largely rely on firewood to keep warm in the winter. The Wood for Life program is stepping up to meet that need.
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The planet Jupiter will shine extra-bright in the evening sky tonight due to an astronomical alignment that occurs just once a year. Here's how to see it.
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Northern Arizonans have a chance to see an annular solar eclipse this Saturday morning, with the sun 80 to 90% covered by the moon. The best views will be at Four Corners, where the moon will obscure the sun almost entirely, leaving only a bright fiery ring. Here's how to safely watch this rare celestial event.