Related Clues:
- Emulate a bull
- 2006 Oscar winner for his first film
- ''An Inconvenient Truth'' author
- 'An Inconvenient Truth' name
- "Earth in the Balance" author
- Star of a 2007 Academy Award-winner*
- '90s White House name
- 'An Inconvenient Truth' narrator
- ''The Assault on Reason'' author
- Bill Clinton's number two
- Big-name environmentalist
- 2007 Nobel Peace Prize recipient
- Noted beard-grower of 2001
- 2007 Nobel recipient
- One reason for an R rating