http://www.helium.com/knowledge/168504-commentary-an-al-gore-global-warming-operatic-debut-at-la-scala-2011.xml Helium.com > People in the News > Commentary: An Al Gore global warming operatic debut at La Scala (2011) en-us Copyright Helium.com Fri, 30 May 2008 15:58:39 GMT Fri, 30 May 2008 15:58:39 GMT