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"The second annual Arkansas Sustainability conference is happening at the Statehouse Convention Center. There'll be booths on green building, solar energy, converting your engine to run on vegetable oil and more. Plus, a Twike (left) will be on display. Se"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.arktimes.com/arkansas/go-green/Content?oid=862692>