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Billionaire environmental activist Tom Steyer addresses the March to Break Free from Fossil Fuels on May 14, 2016 in Los Angeles, California. The March to Break Free from Fossil Fuels are being held in several US cities and other nations as part of an international two-week protest campaign. / AFP / DAVID MCNEW (Photo credit should read DAVID MCNEW/AFP/Getty Images)

Billionaire environmental activist Tom Steyer addresses the March to Break Free from Fossil Fuels on May 14, 2016 in Los Angeles, California.
The March to Break Free from Fossil Fuels are being held in several US cities and other nations as part of an international two-week protest campaign.  / AFP / DAVID MCNEW        (Photo credit should read DAVID MCNEW/AFP/Getty Images)