"Roger" wrote in message
k...


The graph in question shows the extent of the
warming or cooling effect of each factor. What is not well understood is
the mechanism by which they act.

If they don't understand the mechanism how can they know its effect?

There is a lot of evidence that the warming measured a couple of decades ago
was probably due to a drop in pollutants as power stations became cleaner
and aircraft became more efficient. There was a measurable increase in temps
after 9/11 grounded all aircraft and a drop when the flights restarted.

There may not be an actual warming of the entire system at all, just the
bits we measure. Certainly urban temps have shot up far more than rural
temps and far more than sea temps. There was a lot of early satellite data
that showed land and sea temps didn't rise as much as the land based
equipment said but it was decided to ignore it as it didn't fit the
requirements.


Anyway the best thing to do is to reduce the water vapour as it is water
that carries the energy to create storms, etc. The only way to do that is to
stop them burning the rain forests and let them re-grow. You may have to
fight a war to do this. Cutting CO2 is not going to fix the main problem.