GREEN

Greenhouse Gases: A Large Cause Is One We Don't Usually Look At

06/06/2010 05:12 am ET | Updated May 25, 2011

A new inventory of the Portland metropolitan area shows that the bulk of the region's greenhouse gases come from the production of stuff, not from cars and transportation.

Oregon Metro, which conducted the inventory, says that these numbers were more or less in line with the national average.

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