Al Gore
AGE: 59
OCCUPATION: Former Vice-President of the United States, businessman, environmentalist
NUMBER OF TIME COVERS: 10
PREVIOUS APPEARANCES ON THE TIME 100: 1
PRO: Turned his decade-old lecture on global warming into an Academy Award-winning documentary, spearheading a campaign to raise awareness and find solutions for climate change.
CON: The Tennessee Center for Policy Research issued a report revealing that Gore's mansion outside of Nashville consumes more electricity every month than the average American household does in a year. Gore's will-he-won't-he possibility as a 2008 candidate has grown tiresome — confirm or deny already!