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2 answers

Coal fired power is a big one.

Its not an industry per se, but the large number of cars on the roads contribute as well.

2007-12-05 05:27:00 · answer #1 · answered by Lady Geologist 7 · 0 0

The three biggest are electricity generation, transportation, and factories. See the middle of this page:

http://www.epa.gov/climatechange/emissions/usgginventory.html

2007-12-06 17:59:07 · answer #2 · answered by bdude 1 · 0 0

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