I agree fully with Off_The_Street.
I'm also fast aproaching conclusion that biggest hoax of all time is claimed intelligence of human.
For most people head seems to be just a stand for hat because they follow without questioning every possible self proclaimed prophet and leader... and
no matter how many times all these alchemists making gold from junk metals, perpetual motion machine inventors and others have been wrong no one
Maybe that's reason behind why spam is so common and profitable for it's senders: People just don't think and believe all claims about wonder
"Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent
disinclination to do so."
"Most of one's life is one prolonged effort to prevent oneself thinking."
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former."
But back to topic...
Here's really good article considering Day After Tomorrow.
And here's stuff about changes in climate in last 420 000 years.
In June of 1999 the latest ice core data from the Vostok site in Antarctica were published by Petit et al in the British journal Nature. These
new data extended the historical record of temperature variations and atmospheric concentrations of CO2, methane and other greenhouse trace gases
(GTG) back to 420,000 years before present (BP).
Given all the new ice core data, what changes can we anticipate for our climate? If CO2 has increased over the past 150 years as much as it normally
increases over thousands of years leading up to an interglacial phase (about 80 ppmv), then we could expect as much as a corresponding 10-12C increase
in temperature. But if half the historical temperature increases have been due to orbital forcing and other factors, then we should expect an
increase of "only" about 5-6C, or 9-11F.
Most computer models don't predict either of these magnitudes of temperature change for the new century. They typically cite evidence indicating
that overall global temperatures have not changed as much as polar temperatures, where the ice cores were taken, and that increases of only 2-3C
should be anticipated. Unfortunately, new evidence from high-elevation tropical ice cores indicates that this is not really the case. The latest
data show that the amplitude of sub-polar temperature changes has been in the range of 8-12C, which is not all that different from the 10-12C found at
Other one from same subject.
Now remember very fress news about global dimming caused by soot, ash and aerosol particle emissions. Before industrial revolution there wasn't much
of those in atmosphere so that might well explain why current temperature increase isn't as big as previous increases from same greenhouse gasses.
Here's very goos study from signs of warming in arctic areas and its effects in future:
Arctic Climate Impact Assessment