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**ALL ROUND PICTURES FROM SOLARPIX.COM**.**NO UK NEWSPAPER PUBLICATION **UK MAGAZINE PUBLICATION ONLY** AND NO PUBLICATION IN FRANCE, SCANDINAVIA, AUSTRALIA AND GERMANY** .Wearing strategically place lettuce leaves PETA protestors held a demo today outside the London Film School during a visit by former US vice president Al Gore..The protest was to highlight the fact that  the meat industry is the biggest contributor to greenhouse-gas emissions and  points out that Al Gore's award winning  film on global warming ,  An Inconvenient Truth ,  failed to address this issue ..JOB REF: 3485   SFE       DATE: 12.03.07.**MUST CREDIT SOLARPIX.COM OR DOUBLE FEE WILL BE CHARGED* *UNDER NO CIRCUMSTANCES IS THIS IMAGE TO BE REPRODUCED FOR ANY ONLINE EDITION WITHOUT PRIOR PERMISSION*