Here is yet another source for the hot (pun intended) topic of the day. http://www.co2science.org/scripts/CO2ScienceB2C/articles/V9/N45/C2.jsp Chuck, maybe you can find the answer here. Quoting Chuck Hards <chuckhards@yahoo.com>:
Several years ago I made the comment to a friend who happens to be a career scientist that sometimes the sky didn't seem as blue as it was when I was younger. More greenish, espeically noticeable at low sun angles. I can't remember his exact answer, but he said it had to do with the increased concentrations of carbon dioxide and other greenhouse gasses in the atmosphere, as well as certain man-made particulates.
Would an increase in CO2 level (or other industrial pollutants) tend to make the atmosphere more opaque to certain wavelengths of light? Is ground-based astronomy eventually going to take a hit because of air pollution?
--- Patrick Wiggins <paw@wirelessbeehive.com> wrote:
http://www.nature.com/news/2006/061106/full/061106-18.html
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