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November 20, 2006
"Anthropogenic" Greenhouse Gases
'Anthropogenic' seems to be the word of the day for the last couple lectures. It means "caused or produced by humans," according to www.dictionary.com. Essentially, it's differentiating from animal-produced GHGs (e.g., the methane produced by livestock digestion [cow farts - don't laugh] and nitrates produced by animal waste decomposition [rotting cow poop]) and other naturally occuring sources. Humans are by far the largest source of GHGs, though in some developing countries the livestock component is almost as large.
Posted by lpowner at November 20, 2006 04:14 PM