http://www.hcn.org These are the search results for the query, showing results 1 to 6. http://www.hcn.org/wotr/megadrought-the-new-normal Even the weeds are dying in this megadrought, and long time farmers are losing their crops in New Mexico. No publisher Ari LeVaux Harold Trujillo climate change American Southwest collapse of civilizations William deBuys Chaco Canyon A Great Aridness drought megadrought acequia Mesa Verde 2012-07-24T17:03:15Z News Article http://www.hcn.org/issues/43.19/clean-air-regulations-protect-park-views-by-targeting-coal-plants The Environmental Protection Agency is attempting to reduce haze from air pollution near national parks and wilderness; some coal-fired power plants are cleaning up their act and others will shut down. No publisher Cally Carswell viewshed Clean Air Act EPA Region 8 coal-fired power San Juan Generating Station air pollution Boardman Power Plant Xcel Energy utility companies Four Corners Power Plant smoke from wildfires Class 1 visibility haze Sequoia-Kings Canyon Shiprock Western air quality Environmental Protection Agency Joshua Tree National Park selective catalytic reduction Mesa Verde Class 1 airsheds 2011-11-15T17:48:58Z News Article http://www.hcn.org/issues/307/15806 Susan Ryan, a young archaeologist, has some unusual ideas about why the Anasazi left their homes in the Southwest, 700 years ago No publisher Craig Childs Native Americans Indian Culture Ruins Archaeology Anasazi Susan Ryan Ancestral Pueblos prehistoric American Indians pre-Columbian civilizations Four Corners pueblos ruins excavation Crow Canyon Archaeological Center Cortez Colorado Mesa Verde Hovenweep Chaco Canyon Southwester 2010-02-05T09:26:26Z News Article http://www.hcn.org/issues/280/14935 Lewis and Clark did not visit an unchanging, pristine West, but an evolving landscape that had been shaped by Indian peoples for thousands of years No publisher Colin G. Calloway Western History Indian Culture Lewis and Clark Native Americans Indian history Cahokia Mesa Verde Mesoamerica Blackfeet Lakota Osage Comanche Shoshone Crow Pawnee Thomas Jefferson Corps of Discovery James Ronda Brian Fagan Elliott West 2010-02-05T09:20:47Z News Article http://www.hcn.org/issues/274/14747 A spring day in Montana leads to an encounter with sandhill cranes, and with beauty No publisher Charles Finn Birds Pinon pines junipers Mesa Verde ecosystems pinon-juniper ecology pinyon pines M. Lisa Floyd science biodiversity 2010-02-05T09:57:19Z News Article http://www.hcn.org/issues/274/14746 M. Lisa Floyd’s book, Ancient Pinon-Juniper Woodlands: A Natural History of Mesa Verde Country, brings 23 scientists and researchers together to celebrate a little-known and delicate ecosystem No publisher Gail Binkly Science Biodiversity Pinon pines junipers Mesa Verde ecosystems pinon-juniper ecology pinyon pines M. Lisa Floyd science biodiversity 2010-02-05T09:57:19Z News Article