PORTLAND -- The Portland/Vancouver Metro area earned the honor of being selected as the greenest in America, in a study conducted by the American City Business Journals.

The Green Cities Index ranks metro areas on a variety of environmental factors, including traffic congestion, transit use, water quality, carbon emissions, LEED-certified projects and number of green jobs.

The index was compiled by the Business Courier of Cincinnati, which is owned by American City Business Journals, the parent company of the Portland Business Journal.

Second place went to the San Francisco-Oakland-Fremont, Calif., Metro area. Honolulu ranked third. Austin, Texas was selected as No. 4 and Boston was fifth.

More: Read entire Green Cities Index

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