Former US vice-president Al Gore autographs copies of the Portuguese version of his book, An Inconvenient Truth, about the earth's climate crisis, in Sao Paulo

 
Former US vice-president Al Gore autographs copies of the Portuguese version of his book, An Inconvenient Truth, about the earth
Former U.S. vice-president Al Gore autographs copies of the Portuguese version of his book, An Inconvenient Truth, about the earth's climate crisis during a book-signing event organized by his publisher, in a Sao Paulo hotel October 17, 2006. REUTERS/Rickey Rogers (BRAZIL)