A Kansas rancher penned an open letter to Rep. Alexandria Ocasio-Cortez fact-checking the freshman congresswoman's Green New Deal proposal.

Brandi Buzzard Frobose, a beef producer based in the city of Greeley, said Ocasio-Cortez (D-N.Y.) misrepresented some facts about agriculture in her progressive proposal, particularly in suggesting that beef is not being produced sustainably and efficiently.

“I beseech you to please have a conversation with your constituents and colleagues that have an agriculture background,” Frobose wrote. “Cows are not the problem.”

On "Fox & Friends First" Friday, Frobose said she wrote the letter (full text below) because she wanted Ocasio-Cortez to know that farmers are "the original environmentalists."

"I wanted her to know that farmers and ranchers want to be part of the conversation and the climate solution moving forward," Frobose said.

She noted that the U.S. produces nearly 20 percent of the world’s beef with only 9 percent of the world’s cattle, and cows are only responsible for 2 percent of U.S. greenhouse gas emissions.

"We need to be cognizant of the fact that we shouldn't hamper agriculture's ability to produce food in an efficient manner and our world," Frobose said.

When the proposal was rolled out, Ocasio-Cortez's office released an FAQ page which explained the goal of reaching "net zero" greenhouse gas emissions in 10 years.

"We set a goal to get to net-zero, rather than zero emissions, in 10 years because we aren't sure that we'll be able to fully get rid of farting cows and airplanes that fast," the now-deleted page stated.

Ocasio-Cortez later told Showtime's "Desus & Mero" that "we have to take a look at everything," including factory farming.

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