Treasury Secretary Steven Mnuchin is the latest member of the Trump administration to attack climate change activist Greta Thunberg, and what he had to say was just as objectionable as remarks made recently by his boss.

During a press briefing Thursday at the World Economic Forum in Davos, Switzerland, Mnuchin was asked if he thought it was time for the major nations of the world to stop using fossil fuels, which Thunberg has called for. According to CNBC, he responded:

“Is she the chief economist or who is she? I’m confused,” Mnuchin said, before adding this was “a joke. That was funny.”

“After she goes and studies economics in college she can come back and explain that to us.”

Thunberg was also at Davos this week, and she criticized the lack of action on climate change and global warming, telling attendees:

“I’ve been warned that telling people to panic about the climate crisis is a very dangerous thing to do,” Thunberg said.

The world “in case you hadn’t noticed, is currently on fire,” she added.

President Donald Trump, who was also at Davos for two days this week, said those calling for urgent action on the climate are “prophets of doom,” adding:

“But to embrace the possibilities of tomorrow, we must reject the perennial prophets of doom and their predictions of the apocalypse. They are the heirs of yesterday’s foolish fortune tellers. And I have them, and you have them, and we all have them. And they want to see us do badly, but we don’t let that happen.”

Trump also made mention of other threats the world has faced over the decades, seeming to dismiss them as if they no longer pose a danger:

“They predicted an overpopulation crisis in the 1960s, mass starvation in the ’70s, and an end of oil in the 1990s. These alarmists always demand the same thing: absolute power to dominate, transform and control every aspect of our lives. We will never let radical socialists destroy our economy, wreck our country or eradicate our liberty.”

President Trump has also taken cheap shots at Thunberg in the past, tweeting out this in December when Thunberg appeared before the United Nations:

And now Mnuchin has joined the fray, making himself look petty and foolish by attacking a child.

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