re: Scott Pruitt says carbon dioxide is not a primary contributor to global warming

saying

quote:

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I think that measuring with precision human activity on the climate is something very challenging to do ...

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does nothing to support

quote:

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... I would not agree that it's a primary contributor to the global warming that we see ,

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Which rather states/show's/says that he see's something and it's hard to know why. It say's nothing about CO2's role either way... this would seem to indicate that more money (not less) should be spent (allocated) only truly understand if CO2 has any particular role.