Surfing huge waves can be deadly - and exhilarating. Same goes for the wipe outs. One of the sport's most extreme surfers talks James Williams through the experience.
Professor Erle Ellis is proposing a new way to map the Earth's biomes, taking into account the effect humans have had on the planet. Jorge Ribas reports.
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.
The Mekong region in Southeast Asia is home to more than a thousand new plant and animal species, says the World Wildlife Fund. But challenges are ahead in balancing conservation and growth.
Jorge Ribas reports.
Tropical cyclone season usually means massive storms, widespread flooding and damage, and unfortunately, high death tolls. James Williams discovers how the grisly estimates are attained.
In nature there are some species, both plant and animal, that die after spawning offspring. This week Kasey-Dee Gardner finds out why this phenomenon happens.
Has the lost army of Cambyses II been found? The Persian army of 50,000 soldiers supposedly perished in a sandstorm in ancient Egypt 2500 years ago. Researchers have located a valley of bones they think may belong to the fabled army.
Blind drivers are taking a test spin in a new vehicle that allows them to cruise without seeing. Built by mechanical engineers at Virginia Tech, the vehicle could pave the way for a change in perceptions of the blind. James Williams reports.
Can you REALLY tell if your friend is lying to you? As it turns out, probably not. James Williams isn't lying when he says deception is a tricky thing.
Avalanches are fast, powerful and just plain scary; and Alaska Avalanche School director Blaine Smith knows all about them. Jorge Ribas asks him three questions.
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