Vapour trails

In article , Newps wrote:

Larry Dighera wrote:



What seems infinitely more significant is the awesome magnitude of
exhaust spewing from airliners as a result of burning 18,536,000,000
(that's 18-1/2 trillion) gallons of kerosene annually*; one would
expect some environmental impact.

Where I come from, 18e9 is 18 billion. I'm amused in sort of an odd way
that everyone keeps saying things like "assuming people can affect the
climate of the earth is the height of arrogance." This usually comes just
before or after they say there isn't enough evidence to decide one way
or the other. Pick a position and stick with it--using both arguments
is a hint that you've made up your mind and you're just spraying a
blinding cloud of rhetoric. My position is that the evidence probably
isn't conclusive, but the consequences are pretty severe, so we'd better
be damned sure we aren't boning ourselves. Perhaps everyone that's
convinced there's nothing to global warming should move to Florida
as a show of faith?

By the way, sorry for the double-quoting. If I weren't such a bad man
I'd have posted once on Newps's and once on Larry's comments....

Mike Beede