Can't remember where I saw it but there was a measurable significant positive change to the atmosphere over the US in the days after 9/11 when the aviation business was shut down. it was statistically significant and it was not anecdotal.
the shaman 2030 is the number being quoted by the latest studies, not predicting gloom and no oil but when we start using more than we can find. Unless we continue to make substantial efficiencies in the way we use it as we have so far.
Another figure, again I cant rememebr where I saw it suggests that the effort so far has pushed the above time out from 2015.
Now if I'm still around then (2030) all it will mean to me is I'm less likely to get knocked out of my zimmer frame by a car, but my yet to be born grandchildren will be approaching adulthood. I wonder what they'll think of us.
BTB I don't supoose anyone can tell me what is the difference in Jet A1 used, say Syd/Mel between a B737-200 a B737-800?