Poisoned Waters
For 30 years, federal and state governments
have failed to keep their promises to clean them up. The public has lost interest,
too.
Video: Full Episode
Extreme Ice
An acclaimed photographer teams up with
scientists to document the runaway melting of arctic glaciers.
Video: Full
Episode
Echoes from the Ice:
The walls
of ice in Glacier Bay surround the most beautiful sights Alaska has to
offer. Watch the full episode online.
Video: Full Episode
Descent Into
the Ice
A team of "glacionauts" ventures into a
labyrinth of unexplored and hazardous glacier caves on France's Mt. Blanc.
Watch a clip of the video.
Extreme Cave
Diving
What drives scientists to delve into flooded caves where they face rock falls,
nitrogen narcosis, even drowning?
Video: Full
Episode
Victoria Falls: Visualizing the Scale of the Falls
The scope of Victoria Falls, the
world's largest waterfall, is massive. Here are some size
comparisons to help you wrap your head around its scale.
Video:
Full Episode
Victoria Falls
As the water level drops, life returns to the river above Victoria
Falls. The shallow, clear water makes it easier for the skimmers and
fish eagles to catch their food. The bull hippos call loudly, signaling
to other males to stay away.
Video: Life Above the Falls
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