September 17, 2014; 1:20 AM ET
Extremely warm temperatures will remain throughout the Los Angeles Basin for the next couple of days, but by week's end temperatures are expected to become fairly typical. more >
Very warm from Sunday to Monday
Diseases, infections and dangers that could ruin your next hike.
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).
The U.S. National Park Service (NPS) turns 98 years old on Monday (Aug. 25), and to celebrate, the agency is throwing open the doors to all national parks, and inviting people to visit for free.
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.
Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.