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Undo revision 906525 by BrotherX (talk)
'''Air pollution''' is caused by contaminants such as smoke and car exhaust. In cities, a hazy combination of gases and soot causes "smog".
==Controversies==
Intensive lobbying by [[Kyoto Protocol]] supporters got the [[Supreme Court]] to classify [[carbon dioxide]] as a "[[pollutant]]" so it would come under [[EPA]] control (see [[greenhouse gases]]).
Reagan said: "Approximately 80 percent of our air pollution stems from hydrocarbons released by vegetation." [http://www.futurepundit.com/archives/002407.html] This was morphed into ''Trees cause pollution'' in campaign literature and used to imply the Reagan was dishonest or unintelligent, even though (as scientists have said) he was correct.<ref>"It's not just cars and industry that cause air pollution," says Mr Ian Galbally, from CSIRO Atmospheric Research. "Plants release highly reactive [[hydrocarbons]] that can add significantly to [[photochemical smog]] problems. That is, smog caused by the reaction of sunlight with chemical compounds like those from industry, car exhausts — and now, as we've discovered, plants," he says. [http://www.geolsoc.org.uk/template.cfm?name=Reaganright Trees cause pollution after all – Reagan vindicated ] </ref>
==Notes==
<references/>
[[Category:Earth Sciences]]