<documents><document order_code="RL34488" release_date="2008-04-30" date_added="2008-09-17"><title>Regulating a Carbon Market: Issues Raised By the European Carbon and U.S. Sulfur Dioxide Allowance Markets</title><abstract_url>http://opencrs.com/document/RL34488/2008-04-30/</abstract_url><locations><location url="http://assets.opencrs.com/rpts/RL34488_20080430.pdf" /><location url="http://wikileaks.org/leak/crs/RL34488.pdf" /></locations><legislation></legislation></document></documents>