In 2009, then-RNC Chairman Michael Steele was trying to argue that global warming isn’t true. As evidence, he said, “Greenland, which is covered in ice, it was once called Greenland for a reason, right?”

In 2010, Sen. Ron Johnson, the strikingly dimwitted Republican from Wisconsin, also tried to make the case against climate change. After blaming higher temperatures on sunspots — a claim that still doesn’t make sense — Johnson added, “There’s a reason Greenland was called Greenland. It was actually green at one point in time. And it’s been, since, it’s a whole lot whiter now.”

The preoccupation with Greenland continues in 2011.

It snowed in New York this weekend, which can only mean one thing for many conservatives: Global warming is a hoax. Appearing on Fox Business on Friday night, Rep. Louie Gohmert (R-TX) agreed with host Eric Bolling’s assessment that scientists are getting “dumber,” saying, “We’re not as warm as it was when Greenland was really green.” He added, “I think it was the 1930s was the hottest year on record.”

First, the warmest year on record was 2010.

Second, even Koch-financed climate science shows that global warming is real.

And third, will the right please get over this Greenland preoccupation? The place got its name from Erik the Red to make it sound more enticing to potential settlers.

We’re talking about a global climate crisis. The Republican inability to debate above a third-grade level strongly suggests we’re doomed.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.