Fox News producer and occasional host Jesse Watters suggested on Monday that man-made climate change was likely a hoax because there were no "humans with cars" to generate greenhouse gasses at the end of the last ice age.
Last week, conservative media accused Portland Public Schools of enacting a book ban over its plan to "abandon the use of any adopted text material that is found to express doubt about the severity of the climate crisis or its root in human activities."
"It's so anti-scientific," Fox News host Kennedy Montgomery asserted on Monday's edition of Outnumbered.
"Yeah, aren't students supposed to learn how to ask questions?" Watters agreed. "And now you can't read a book that asks questions."
"There are still scientists, believe it or not, out there who say we still have to look at the data," Montgomery continued. "And it's impossible to predict how the climate is going to change over hundreds or thousands or years."
"So, getting out of the ice age -- how did the Earth warm up after the ice age?" Watters opined. "There were no humans there with cars and factories. I mean, how did things warm up?"
"I should be teaching these courses," he added. "These aren't that hard. It gets hot, it gets cold. This spring has been freezing. It's not getting warmer. It seems like it's getting colder. Am I wrong?"
According to a 2012 paper published in Nature, the rise in temperatures after the last ice age was caused by carbon dioxide -- much like the rise in temperatures from today's changing climate.
"The research suggests that—contrary to some prior findings—CO2 led the prior round of global warming rather than vice versa, just as it continues to do today thanks to rising emissions of CO2 and other greenhouse gases," Scientific American explained. "Humanity has now raised global CO2 levels by more than the rise from roughly 180 to 260 ppm at the end of the last ice age, albeit in a few hundred years rather than over more than a few thousand years."
Watch the video below from Fox News.