You know, because we’re stupid for not blindly following junk science.

BOSTON — Massachusetts Democrat Sen. John Kerry, exasperated at what he called “the flat-earth caucus,” on Sunday described the frustrations of working on environmental issues in the U.S. Senate.

Even amid the “Tuesday Group” — a bi-partisan bloc of lawmakers, mostly Democrats, who are interested in energy issues — “you can’t talk about climate now,” Kerry said. “People just turn off. It’s extraordinary. Only for national security and jobs will they open their minds.”

Kerry blamed brothers David and Charles Koch, oil billionaires who have bankrolled attempts to discredit climate change, as well as opposition from energy companies. “You have Peabody Coal. You have MidAmerican. They have these big old cash cows, these old coal-powered plants. It’s just cash coming in, and they want to keep it that way.

“This is unrestrained, least-ethical, bottom-line capitalism,” said Kerry, who ran unsuccessfully against George W. Bush for president in 2004 and now chairs the Senate Foreign Relations Committee. “We have lost the notion of responsible capitalism.”