Host Pat Sajak, contestant Nancy Kaufman and actress Paige Hemmis make an apperance at Radio City Music Hall for a taping of celebrity week on "Wheel of Fortune" hosted by People Magazine. The taped shows will air the week of November 12 to celebrate the shows 25th anniversary in New York, Saturday, Sept. 29, 2007. (AP Photo/Peter Kramer)

"Wheel of Fortune" host Pat Sajak is very active on Twitter. Among other topics, he tweets about climate change. A lot.

His latest tweet on the subject on Monday evening prompted dozens of replies:

I now believe global warming alarmists are unpatriotic racists knowingly misleading for their own ends. Good night. — Pat Sajak (@patsajak) May 20, 2014

He also lamented Twitter's 140-character limit to a fan who thought the tweet didn't go far enough:

@bdzbdz Only so much you can do within Twitter parameters. — Pat Sajak (@patsajak) May 20, 2014

Meanwhile, the National Oceanic and Atmospheric Administration just announced that April 2014 tied for the warmest April on record. Last month was also the 350th consecutive month with global average temperates at or above the 20th century average.

It's unclear what prompted Sajak's latest tweet deeming those who acknowledge climate change are "racists," but the guy who watches people spin wheels for a living frequently tweets about global warming. A few other examples:

Help...climate changing...must send money to lots of places...a lot of money...hurry...time is short...not kidding... — Pat Sajak (@patsajak) May 14, 2014

Very hot weather: "We're all going to die!" Very cold weather: "There's a difference between climate & weather, moron!" — Pat Sajak (@patsajak) May 11, 2014

With ice caps melted, polar bears gone and kids no longer able to play in the snow, who's laughing now, huh? — Pat Sajak (@patsajak) February 13, 2014