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A massive snowcap formed on
Africa's Mount
Kilimanjaro 11,000 years ago. Over the past
100 years, it has shrunk 80%. Over the
past 7 years, it is almost gone.
Some
scientists believe the snow cap of Mount Kilimanjaro will be gone in two
decades. Researchers say the ice fields on Africa's highest mountain
shrank by 80 percent in the past century. The snow cap formed some 11,000
years ago. The Landsat satellite captured these images of Kilimanjaro
February 17, 1993 and February 21, 2000.
full
story
Carbon dioxide levels today are nearly 30% more
than they were prior to the industrial revolution. What is truly
unprecedented about current carbon dioxide levels is the speed in which
they have risen. In the millions of years of known geological history, the
Earth has never experienced such a rapid rise. The signature of human
influence is unequivocal. There is no doubt that we have caused this
change to the atmosphere from burning fossil fuels.
The
Earth Institute at Columbia University
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