The Frigid Future Is Upon Us
http://www.godlikeproductions.com/fo...sage691463/pg1
"The UW-Madison researchers used their computer models to
compare a world impacted by this longer period of warming
with a theoretical world in which the climate remained
unaffected by human activities.
In the world absent man's influence, known glacial cycles --
predictable and regular periods that have to do with the orbit
of the Earth and radiation from the sun -- happened at regular
100,000-year intervals.
But Vavrus said when the researchers compared the changes
caused by humans with a world absent the impact of greenhouse
gases generated by man over the last 5,000 to 8,000 years, the
model told them that we should be entering an ice age.
'We should have been in a relatively cool climate state by now,'
Vavrus said.
When they removed the human-caused greenhouse gases, Vavrus
and Kutzbach said, three different models showed the same thing --
that more ice and snow should be forming in Canada, Siberia,
Greenland and the Rocky Mountains, all places where glaciers first
started forming during previous ice ages.
While this may seem a fortuitous finding -- especially as you survey
the small glacier in your driveway -- Vavrus cautioned that our
possibly having held off an ice age is not necessarily a good thing.
'It's important for people to realize,' Vavrus said, 'that this
research
suggests climate is very sensitive to greenhouse gases. And the
huge amounts we're emitting through modern activities are probably
going to have an even bigger impact.'"
David Christainsen - Meteorologist