AVAAZ environmental activists wear masks

AVAAZ environmental activists wear masks depicting leaders of the countries members of the G7, (L-R) Japanese Prime Minister Shinzo Abe, British Prime Minister David Cameron, French President Francois Hollande, German Chancellor Angela Merkel, U.S. President Barack Obama, Italian Prime Minister Matteo Renzi and Canadian Prime Minister Stephen Harpe during a rally in front of the Brandenburg Gate near the venue where the Petersberg Climate Dialogue takes