Possible Clues:

• Author of "An Inconvenient Truth"
• Only vice president born in Washington, D.C
• He and the Inter-governmental Panel on Climate Change won the 2007 Nobel Peace Prize
• Old statesman having, alas, good read halved
• 2007 Nobel Peace Prize co-recipient
• Vice president who wrote "An Inconvenient Truth"
• “Earth in the Balance” author
• Losing candidate in the 2000 US presidential election
• "An Inconvenient Truth" writer
• Bill Clinton's #2