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Greenpeace USA 2019: Paul Driessen
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Greenpeace USA 2019: Craig Idso
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Greenpeace USA 2019: Steve Milloy
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Greenpeace USA 2019: Patrick Michaels
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Greenpeace USA 2019: Joseph Bast
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Greenpeace USA 2019: Christopher Monckton
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Greenpeace USA 2019: Myron Ebell
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Greenpeace USA 2019: Charles and David Koch
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Greenpeace USA 2019: S. Fred Singer
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Greenpeace USA 2019: James Inhofe
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Greenpeace USA 2019: Richard Lindzen
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Greenpeace USA 2019: Anthony Watts
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Greenpeace USA 2019: Willie Soon
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Greenpeace USA 2019: James M. Taylor
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Greenpeace USA 2019: Marc Morano
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Greenpeace USA 2019: Bob Carter