Core samples from Antarctica tell a fascinating story about how the Earth's climate has changed over thousands of years. Discovery News' James Williams digs into the details.
The loggers don't just work together, they live together. Get a private tour of their house and find out where all the magic happens. Extreme Loggers premieres Wednesday, July 15, at 9 p.m. ET/PT.
See how the loggers get the job done with the help of a 50-ton beast of a machine, the feller buncher. Extreme Loggers premieres Wednesday, July 15, at 9 p.m. ET/PT.
Clearing a logging path is hard, but it's even more challenging in the snow. See how the loggers get it done in this icy environment when Extreme Loggers premieres Wednesday, July 15, at 9 p.m. ET/PT.
The cryosphere consists of those parts of the Earth's surface where water is found in solid form -- snow, sea ice, glaciers, permafrost, ice sheets, and icebergs. Take a tour of the cryosphere.
For backcountry trekkers in Alaska, avalanches come with the territory. The Alaska Avalanche School teaches them how to spot, avoid and provide rescue after one. Jorge Ribas goes to class.