IS KILIMANJARO DYING? NOVA
CLIMBS AFRICA'S HIGHEST PEAK TO SOLVE THE MYSTERIES OF ITS VOLCANIC
DESTINY AND DISAPPEARING GLACIERS
NOVA PRESENTS "VOLCANO
ABOVE THE CLOUDS"
www.pbs.org/nova/kilimanjaro
In 1980 Mount St. Helens
in Washington State suffered a catastrophic landslide that released
seething volcanic gases and rock fragments in a cataclysm that destroyed
hundreds of square miles of forest. Could Africa's fabled Mount Kilimanjaro
be heading for the same fate? NOVA accompanies an expedition up Kilimanjaro
to learn what the future holds for the world's tallest volcano, on Volcano
Above the Clouds (check local listings).
An added mystery is why Kilimanjaro's
distinctive summit glaciers are shrinking. Expected to disappear totally
by 2015, the vanishing ice has been cited as an icon of global warming.
But could there be another explanation?
The roster for the ambitious
climb is as unique as the mountain itself and includes African-born
naturalist Robin Buxton, an expert on the ecology of Kilimanjaro who
has been permanently disabled from polio since age two and whose first
effort to summit Kilimanjaro borders on the heroic. Also on the expedition
are German geologist Volker Lorenz, a world authority on volcanoes;
British geologist and team leader Kevin Docherty; and Tanzanian park
ranger and naturalist Michael Ngatolowa.
Like most Africans who live in the shadow of Africa's highest peak,
Ngatolowa has never had access to the expensive equipment needed to
make the arduous trek to Kilimanjaro's 19,340-foot summit. His personal
goal: to see snow, a substance that he has only glimpsed from afar and
that clings like perpetual clouds to the mountain's lofty top.
Towering high above the Masai Steppe just a few degrees south of the
equator, Kilimanjaro was created by the eruption of three separate volcanoes
that formed from three hundred thousand to eight hundred thousand years
ago.
Though considered long dormant,
Kilimanjaro shows evidence that it is ripe for a Mount St. Helens-style
explosion, an event that would be devastating to those who farm the
region surrounding the mountain, where a distinctive style of agriculture
called tree gardening is practiced. The technique uses the shade of
larger trees to protect crops such as coffee and bananas from the hot
equatorial sun.
While geologists Lorenz and Docherty are focused on Kilimanjaro's slumbering
volcanic forces, naturalists Buxton and Ngatolowa investigate the source
of Kilimanjaro's vital water supply. Are the mountain's melting glaciers
a significant factor in nourishing crops? And when the glaciers are
gone, how will agriculture be affected?
These projected dual calamities-volcanic eruption and disappearing water-are
the reasons Kilimanjaro is sometimes said to be dying. It's an apocalypse
that's hard to picture during the spectacular climb up the mountain,
which reveals a succession of different biomes-from village to rain
forest to cloud forest to alpine to arctic, all of which host an amazing
variety of plant and animal life.
And in the thin air at the top is an eerie moonscape, spotted with smoking
volcanic fumaroles, slowly melting 100-foot-high glaciers, and, most
amazing of all for one team member, snow.