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'Jeopardy!' Host Alex Trebek Believes Climate Change Is Caused By Man

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Sipa USA / Patrick McMullan Co.

"I consider myself a social liberal and a fiscal conservative. I believe that climate change exists, and is contributed to by human activity," he wrote. "I have seen firsthand the effects of climate change, in trips to Antarctica and Mt. Kilimanjaro, both of which are showing huge changes due to global warming."

That's a more liberal stance than the one Sajak, of "Wheel of Fortune" fame, recently took when he mocked "global warming alarmists" on Twitter.

But when it comes to politics, Trebek told Salon he's a registered Independent and has previously voted for both Republican and Democratic candidates. He also expressed support for gay marriage and equal pay for women.

"I’m in favor of equal pay for women, and the Lilly Ledbetter act. I believe in equal rights for the LGBT community; in fact, this winter, I braved the Minnesota winter weather to attend a gay wedding (which was officiated over by my wife)," he wrote.

This post has been updated.