The former president of Greenpeace Canada slammed Rep. Alexandria Ocasio-Cortez as a “pompous little twit” for advocating the so-called Green New Deal.

Patrick Moore, who left Greenpeace after 15 years and is now critical of the “eco-fascist movement,” ripped the progressive darling, who seeks to end the nation’s reliance on fossil fuels over 10 years.

“You don’t have a plan to grow food for 8 billion people without fossil fuels, or get food into the cities. Horses?” the scientist and author tweeted.

“If fossil fuels were banned every tree in the world would be cut down for fuel for cooking and heating. You would bring about mass death,” added Moore, who wrote the book “Confessions of a Greenpeace Dropout: The Making of a Sensible Environmentalist.”

He also ripped into AOC for describing climate change as “our World War II.”

“Isn’t @AOC a bit young to talk about WW2? It was Hell & more than 60 million died,” he wrote.

“It’s her @GND that would be worse than WW2. Imagine no fuel for cars, trucks, tractors, combines, harvesters, power-plants, ships, aircraft, etc. Transport of people & goods would grind to a halt.”

Moore continued his broadside by suggesting Ocasio-Cortez is a “flash in the pan.”

“Her @GND is so completely crazy it is bound to be rejected in the end. But she does have wind in her sales due to the political situation. 2020 will be even more interesting now,” he said.

Moore also assailed Ocasio-Cortez as a “garden-variety hypocrite,” in response to a report in The Post that she used gas-guzzling private vehicles instead of taking the subway.

“You’re just a garden-variety hypocrite like the others. And you have ZERO expertise at any of the things you pretend to know,” he said.

Ocasio-Cortez has sarcastically hailed The Post’s “hard-hitting journalism.”

“The Post put the fact that I get into cars (while proposing a plan to invest in better car technology) on their front page,” she tweeted. “Pack it up folks, the Pulitzer’s been decided.”

A Greenpeace spokesman said Moore doesn’t represent the environmental group.

“His statements about Alexandria Ocasio-Cortez and the Green New Deal have nothing to do with Greenpeace’s positions and should not be reported as such,” Travis Nichols told The Post in a statement.

“Mr. Moore frequently cites a long-ago affiliation with Greenpeace to gain legitimacy in the media, and media outlets often either state or imply that Mr. Moore still represents Greenpeace. He does not.”