The Air Quality Index, or AQI, is an air quality alert system maintained by the U.S. Environmental Protection Agency (EPA).
You don’t have to leave the planet to feel like an astronaut. From hidden craters to secret NASA training grounds, these ...
The mountaineer, REI visionary, and environmental advocate was the defining figure of 20th-century American climbing.
From powering Starlink to running diesel heaters, these portable power stations handled real off-grid use better than ...
Burke has spent decades researching cancer. Now facing a stage IV diagnosis, she’s heading to Mount Everest to study her ...
From dodging venomous vipers to finding water in the desert, a veteran producer reveals the high-stakes process of picking ...
From search and rescue to animal welfare, nonprofits do heroic work to serve their communities. Defender believes they ...
The bacteria living in your gastrointestinal tract may play a surprising role in how much altitude sickness affects you.
The Trump administration is fast-tracking a plan to strip protections from Chaco Canyon, potentially opening more than ...
Thru-hiker Nick Gagnon burned through 14 pairs of shoes, averaged 32.5 miles per-day, and ate too much junk food to remember ...
An expert on environmental policy measured every drop of water he used during months of heavy AI work. The findings reveal we ...
6d
A Hurricane Buried This Soldier in 1873. Archeologists Just Found Him in America’s Most Remote Park.
During the deadly yellow fever outbreak of 1873, a hurricane forced soldiers to bury one of their own inside the walls of ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results