Activists wear caricature heads of Economy and Energy Minister Sigmar Gabriel (L) and Chancellor Angel Merkel on a boat on the river Spree during a protest for Germany's shift to green energy and away... more 
Activists wear caricature heads of Economy and Energy Minister Sigmar Gabriel (L) and Chancellor Angel Merkel on a boat on the river Spree during a protest for Germany's shift to green energy and away from nuclear power and fossil fuels in Berlin May 10, 2014. Environmental groups and supporters rallied on Saturday against nuclear energy, the expansion of fossil fuel power stations and what organisers said was a backtracking of the German government on the country's planned energy transition, the shift from conventional forms of energy sources to the use of renewable means of energy generation. The writing on the placard reads: "Sustainable Energy Transition Now!" REUTERS/Fabrizio Bensch (GERMANY - Tags: ENERGY ENVIRONMENT POLITICS CIVIL UNREST) less 
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Reuters | Photo By FABRIZIO BENSCH / REUTERS
Sat, May 10, 2014 8:55 AM EDT