Native butterflies are vanishing from parts of the Northeast, a Harvard University study finds, while warmer-natured southerners are increasingly invading their turf. This coincides with a half-century warming trend in the ...
Ecology
Aug 27, 2012
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Climate change is causing a late wake-up call from hibernation for a species of Rocky Mountain ground squirrel and the effect is deadly.
Plants & Animals
Aug 8, 2012
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The rise of the Rocky Mountains and the appearance of a major seaway that divided North America may have boosted the evolution of new dinosaur species, according to a new Ohio University-led study.
Archaeology
Aug 2, 2012
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The cause of rapid sea level rise in the past has been found by scientists at the University of Bristol using climate and ice sheet models.
Earth Sciences
Jul 11, 2012
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As Americans observed Independence Day, wildfires continued to burn across the western United States, including wildfires in Colorado and the Fontenelle Fire in Wyoming. Wildfire smoke affected large parts of the country, ...
Earth Sciences
Jul 9, 2012
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A new study led by the University of Colorado Boulder indicates air pollution in the form of nitrogen compounds emanating from power plants, automobiles and agriculture is changing the alpine vegetation in Rocky Mountain ...
Environment
Jul 5, 2012
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Mountain belts on Earth are most commonly formed by collision of one or more tectonic plates. The process of collision, uplift, and subsequent erosion of long mountain belts often produces profound global effects, including ...
Earth Sciences
Jun 29, 2012
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During the fall, hundreds of millions of monarch butterflies living in eastern North America fly up to 1,500 miles to the volcanic forests of Mexico to spend the winter, while monarchs west of the Rocky Mountains fly to the ...
Plants & Animals
May 31, 2012
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When mammals are cold, they can employ physical changes to stay warm -- such as intense shivering. Like any form of aerobic exercise, though, "shivering thermogenesis" is especially challenging at high altitudes because there ...
Plants & Animals
May 17, 2012
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The mild winter of 2012 has many people asking, "Where's the snow?" These two snow cover maps show the difference between snow extent on March 3, 2011, and March 5, 2012. The maps were compiled from data collected by the ...
Earth Sciences
Mar 14, 2012
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