University of Colorado-Boulder

Marathon Runners Target Two-Hour Barrier

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Three elite runners backed by a small army of scientists will on Saturday attempt an audacious assault on the boundaries of the possible by trying to run a marathon in less than two hours. Reigning Olympic marathon champion Eliud Kipchoge from Kenya, Ethiopia’s Lelisa Desisa and Eritrea’s Zersenay Tadese will aim to complete the classic … Read more

Humans Spark Most US Wildfires

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People sparked most US wildfires in recent decades, causing longer fire seasons and increasing the amount of scorched earth, according to a new study published Monday. Researchers found that humans caused 84 percent — or four out of five — of the total 1.5 million wildfires studied between 1992 and 2012. In addition, human actions … Read more