<http://schema.org/url>
<http://gigaom.com/2013/10/21/how-al-gore-is-using-social-media-to-try-to-change-the-conversation-on-climate-change/>
<http://gigaom.com/2013/10/21/how-al-gore-is-using-social-media-to-try-to-change-the-conversation-on-climate-change/>