Wis. US Sen. hopeful: Global warming 'unproven' - The Associated Press

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Wis. US Sen. hopeful: Global warming 'unproven' The Associated Press MILWAUKEE â€" Wisconsin US Senate candidate Ron Johnson said Thursday that global warming was an "unproven" science that shouldn't be used to dictate US ... Wis. US Sen. hopeful: Global warming 'unproven' The Associated Press Ron Johnson claims global warming “unproven” The State Column (blog) MoveOn Of The Day Canada Free Press  »