"Bob" wrote in message
...

This is the crux of the matter really. The greenhouse effect is basic,
established physics. At the same time, we know that CO2 levels are
increasing.

Even that is not proven.
The greenhouse effect relies on the CO2 concentrations in the upper
atmosphere and we don't have any measurements dating back more than a decade
or three.

The uncertainty is in modelling and predicting the
*precise* consequences of that. However there is general agreement on
broad trends and it does not provide good news. If anything
predictions that have been made seem to have been on the optimistic
side.

It is well known that there are benefits from climate change as well as bad
things.
You cannot state that it will be bad for the majority as nobody knows at
this time.


I don't understand why people feel that when it comes to certain
topics, science is a matter of opinion. Why don't we get threads
about general relativity or something? A lot of the climate change
sceptic stuff that I see on the internet reminds me of the
creationist, anti-evolution opinions that I come across and seems to
employ similar tactics:

Well generally believers in relativity don't come here and start telling
everyone that they have to fix the world.


- putting forward spurious arguments that have been refuted time after
time
- picking holes in small areas, ignoring the fact that in practice
science relies on real world measurements that contain outliers and
need to be analysed using (again very well understood and
established ) statistical methods
- most importantly, doing the above while not putting forward good
quality peer-reviewed science of their own

Unfortunately these tactics seem to work. Most people are happy to be
ignorant and when the scientific message is as unappealing as it is in
this case, are happy to accept dissenting voices without scepticism.

Except the good science doesn't show that GW is actually happening or that
it will be bad if it were.
You have just committed the vary offence you accuse others of.. bad science.