Keith Nuttle wrote:
NotNow wrote:
Keith Nuttle wrote:
NotNow wrote:
Calif Bill wrote:



If the past does not matter you have no basis to say there is global
warming. Yesterday, last week, last year, last decades'
temperatures, don't exist therefore there are no temperatures to
compare today's temperature, so it can not be increasing

Do this. Show me unmitigated, researchable data that proves for a fact
that global warming isn't occurring.

There is some data showing regional warming. There is some data showing
regional cooling. We have been collecting data on the weather for a
little more than two hundred years. Probably half of this time with
imprecise equipment and poor sampling techniques. The first half of this
database has a very limited scope in relation to the total surface area
of the earth. There are still large area of the surface of the earth
(water and land) that have no data history for the temperature.

Based on this small sampling of data there are some privative computer
models that have been developed that based on this small data pool
project the numbers forward and show a warming trend. However they did
not predict the cooling that has been experienced in the current
century. They can not accurately predict the weather from day to day.
(We have record high temperatures in the western US and record low highs
in the Midwestern US. In fact because of these low temperature we may
see increases in alcohol (gasoline), and various foods because of low
yields.)

If you get passed the politics and look at the data being generated,
there are signs that the world is warming, but there are also signs that
it is cooling. The ice on one side of the antarctic has been decreasing
BUT the ice on the other side has been increasing. The current that
comes out of the Arctic down the west side of Greenland is colder and
stronger after weakening in the late 1900's

Archeology, paleontology and other long term sciences have shown that
global warming is a cyclic phenomena, with cycles 100000 years or more
in length. There are too many variables, and the cycles too long, to
make any accurate prediction from the limited data set we currently
have. There is definitely too little data available to start trying to
modify the weather when we don't know all of the variables that control
it. (If we do something wrong we could make a bad situation worse.) It
is absolutely too early to start throwing trillions of dollars at a
situation that is not known nor understood.

I fully understand that there is a cyclic element to the problem. BUT,
you can not deny data that shows that air pollution has corresponded
perfectly with the warming trend that we are now seeing. That has only
occurred before with super volcano events. Anyone who just shoves good
data under the rug because it doesn't meet their current ideology just
isn't very good at science.