Conrails caused by air pollution?

By pbanks7
September 5, 2007 - 22:36 ET

While surfing last night, my wife and I encountered Nova, on (I assume) PBS, and the narrator described the conrails of jets being caused by (paraphrasing) small particles of pollution. When I exclaimed, "Awww! @#$@%"....the wifey changed the channel. (I rarely care which channel is on marriage happiness lesson # 23. I'm usually doing something else like drinking beer, or doing a crossword, sudoku, or picture puzzle, in case you thing I'm PW. Yes, dear).

I thought contrails were caused by the hot exhaust of engines hitting the cool air of the atmosphere. Is that how far GW has come/gone?

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