Despite overwhelming scientific evidence, some American politicians continue to deny that climate change exists, while others question the severity of its impact. But public opinion is shifting, and today even oil and gas companies publicly admit that climate change demands action. So why does climate denialism continue to influence U.S. politics? Here's a look into who is funding the movement, and why denial is mainly a U.S. problem.

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Why Climate Change Denial Still Exists In The U.S.