David Chorley wrote:

Matthew Wild wrote in message
...
David Chorley wrote:

The only interest a politician will have in climate change will be how
to extract more money from the taxpayer and extend control over the
individual.
This, incidentally, is why "global warming through increased levels of
carbon dioxide in the atmosphere" was thought up as it is hogwash as
basic science and undisproveable, as it is unproveable.

David

Your evidence for this exactly?

Matthew

1. basic science: the ability of the CO2 molecule to absorb and
re-radiate energy is based on its dipole moment. CO2 is a linear
molecule with, at best a temporarily induced dipole moment, unlike
water, which with its unshared pair of electrons has a huge dipole
moment and is a very effective greenhouse gas. Witness the change in
temperature on a cloudy night, when the clouds clear and energy is not
re-radiated back to the ground. A change in the concentration of
carbon dioxide would have to be huge to perform this degree of effect.

The change in concentration has been huge. IIRC, the levels of CO2 in the
atmosphere now are higher than they were when the dinosaurs were around.

2. Paeleontology.
The records of prehistoric London show a savannah-like climate with
species much more like East Africa as recently as 10000 years ago, not
so long ago that continental drift would have much of an effect (
1000years/metre)

Not quite sure what this is meant to prove.

3. The data set is too small: a sample of 200 years, notwithstanding
inferences made from ice cores, is just too small to make predictions.

The correlations of data from ice cores are pretty good and provide a good
idea of the changes over thousands of years.

4 the hypothesis makes no accounting for changes in solar radiation
and sunspot activity.

This is absolutely wrong. Work, we and others, have done, shows that changes
in solar radiation would account for less than 50% of the change in global
climate change. Also, climate change has been accelerating over the last
50-60 years. The sun hasn't been changing that much on such a timescale and
the link between sunspots and climate is incredibly tenuous.

HTH

David

Oklahoma, USA has undergone its coolest summer since records began...
therefore we are subject to global cooling.

And due to global warming, the UK will get generally warmer, but also a lot
wetter and more changeable to the extremes. As the globe warms, it will
different effects in different locations as the prevailing weather patterns
change.

Matthew
--
Matthew Wild Tel.: +44 (0)1235 445173
URL http://www.wdc.rl.ac.uk/
World Data Centre - Solar-Terrestrial Physics, Chilton
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX