Quote:
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Originally Posted by bla bla
Our continent was largely populated by man via an
ice bridge from Siberia to Alaska roughly 12,000
years ago. That ice formation no longer exists.
Planetary changes in geology, and average climate
conditions, work on a scale of millions of years.
On the geologic time scale the melting of a massive
ice formation like this so recently would indicate
we are currently in a warming cycle that began long
before man became any sort of possible factor. The
reversal, or continuation, of this trend will also
take many thousands of years.
The coopting of this data by political factions is
nothing more than pandering to secure votes.
The globe is warming because it is in a warming
trend, not because people drive cars.
Small fluctuations in yearly temperature mean
nothing.
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"During the last 2 billion years the Earth's climate
has alternated between a frigid "Ice House", like
today's world, and a steaming "Hot House", like the
world of the dinosaurs.
http://www.scotese.com/images/globaltemp.jpg
http://www.scotese.com/climate.htm
"There are two orbital features of the Earth, its
elliptical orbit, and the tilt of the Earth in
relation to its plane of orbit."
Variations in Earths orbit are the largest single
factor in global climate conditions."
http://www.bbc.co.uk/weather/feature...ceage_02.shtml
"...it is these orbital variations that account for
our weather pattern during the present ice epoch."
"Predictions of global warming are based on
computer climate modeling, a branch of science still
in its infancy. The empirical evidence actual
measurements of Earth's temperature shows no man
made warming trend. Indeed, over the past two
decades, when CO2 levels have been at their highest,
global average temperatures have actually cooled
slightly."
http://www.oism.org/pproject/s33p36.htm
This planet has been going through cycles of warming and cooling long
before man walked the Earth.
The last hundred or so years of using combustion engines has not
superseded the effects of the Sun, planetary orbit, continental drift,
or thousands of years of vocanic activity on the worlds weather patterns.
Cycles of global cooling and warming are not a
theory, its fact. Fossil remains of dinosaurs have
been found that would have been near the South Pole
when the COLD BLOODED creature died.
http://home.alphalink.com.au/~dannj/ecenvir.htm
Unless the Earth had been much warmer than it is now
cold blooded dinosaurs could not have lived there.
At times glaciers have reached almost to the equator,
evidence can be found in tell tale scarring left
behind by them. During very warm periods there were
no ice caps at the poles, or very small ones.
Here's a thought...
There are more sources of CO2 emission in nature than
mankind's one contribution, its part of the natural
carbon cycle that supports life on this planet.
By scale, and simple mathematics, our contribution is
the least significant.
But are 'emissions' the greatest effect we are tipping
the scale with in any small way?
The vast depletion of rain forests in South America
impacts the CO2 recycling by plants.
Pollution of the oceans, creating actual "dead zones",
also impacts CO2 absorption.
The simplistic crap you are fed by people like Al
Gore is nothing even close to real science.