Johanna Varner thought a devastating forest fire meant the end of her pika research on Oregon's Mount Hood. Instead, she discovered that the pint-size pikas survived the fire, providing new insight into their resiliency to environmental change.
To date, 2014 has had the largest number of record warm and record low-temperature days to occur simultaneously in the United States, according to the National Oceanic and Atmospheric Administration (NOAA).
Military aircrews may no longer have to choose between staying safe and staying cool. The U.S. Army's new personal cooling systems, worn underneath body armor, can help troops beat the heat, without removing their protective gear.
Wildfires have returned to Yosemite's neighborhood this year, but at this point, the blazes have remained much smaller in size than the Rim fire.
Researchers at the Georgia Institute of Technology found that since the 1960s, urban Louisville, Ky., saw its temperature rise above that of its surroundings at a rate greater than any other city in the country and more than double the warming rate of the planet as a whole.