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Re: [Phys-L] [Phys-l] Poll shows fewer Americans "believe" inglobal warming (NOT)

Perhaps the subject needs to be changed. At present with the bad weather
and heat more Americans now believe in global warming. Unfortunately it
takes visceral evidence to convince people and not scientific evidence and
research. This of course has been strongly verified by PER. In other words
authoritative lectures do not work. Meanwhile Forbes continues to trumpet
that meteorologists do not believe in global warming, actually they do, but
not in anthropogenic global warming. But meteorologists are NOT
climatologists. Meteorologists deal with the almost random noise, while
climatologists deal with the long term trends. So quoting meteorologists on
global warming is like quoting dermatologists about colon cancer.

John M. clement
Houston, TX

Suppose there are 200 million cars in the US which account
for all the
man made CO2 increase in the atmosphere.
Suppose a tail pipe is 2 inch diameter, and emits 20% CO2 when the
engine is running, which happens on average 2% of the time. To
counter that effect, let's estimate the magnitude of the flux
of a gas
which is 1000 times more potent at cancelling the global
heating effect
than CO2 is at exciting the effect.

We will suppose that the palliative flux is emitted 100 times faster
than an exhaust flow. What diameter of pipe should we visualize?
sqrt(2E8 cars X PI sq inches tail pipe area X 0.02 duty rate
X 0.2 CO2
fraction X 0.001 potency factor X 0.01 flow ratio X 4/PI pipe diam to
area ratio )- this provides me a back of the envelope estimate of 6
inches diameter for the quenching gas exit pipe diameter. This is
certain to be an underestimate. This is described as a garden hose?