"'When it comes to climate change, Congressman Joe Walsh Keeps His Head in the Sand,' a mobile billboard in the Illinois representative's district declares."

"The ad is part of a new billboard campaign launched by the League of Conservation Voters (LCV) targeting members of Congress with 'extreme, anti-science views on climate change.'

According to an LCV press release, the billboards are expected to remain in the districts of targeted representatives through Election Day. The campaign is part of the advocacy group's 'Flat Earth Five' program, which specifically targets Rep. Dan Benishek (R-Mich.), Rep. Ann Marie Buerkle (R-N.Y.), Rep. Dan Lungren (R-Calif.), Rep. Francisco Canseco (R-Texas), and Rep. Joe Walsh (R-Ill.)."

Huffington Post had the story October 18, 2012 [2]