Related Clues:
- ''The Assault on Reason'' author
- Big-name environmentalist
- 2007 Nobel Peace Prize recipient
- 2007 Nobel recipient
- One reason for an R rating
- Lesley, singer of 11-Down
- ''Earth in the Balance'' author
- 2007 Peace Nobelist
- ''An Inconvenient Truth'' creator
- Cause for an R, perhaps
- Feature of some horror films
- Al of 'An Inconvenient Truth'
- Ex-veep Al
- Peace Nobelist
- 'An Inconvenient Truth' teller?