Louise Linton, the wife of U.S. Treasury Secretary Steven Mnuchin Steven Terner MnuchinLawmakers fear voter backlash over failure to reach COVID-19 relief deal United Airlines, unions call for six-month extension of government aid House Democrats plan to unveil bill next week to avert shutdown MORE, deleted an image she posted on Instagram Saturday showing support for teenage climate activist Greta Thunberg.

Linton, who is an actress and TV producer, posted the image of Thunberg, 17, speaking at Davos, Switzerland, calling for an end to the fossil fuel industry.

“I stand with Greta on this issue,” she wrote. “(I don't have a degree in economics either) We need to drastically reduce our use of fossil fuels. Keep up the fight @gretathunberg."

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Linton’s post was screenshotted by multiple journalists before it was deleted without explanation, though it appears to be a response to a previous statement her husband has made about Thunberg.

Actress and producer Louise Linton, who is married to US Treasury Secretary Steve Mnuchin, says she stands with @GretaThunberg



Note how Linton says “I don’t have a degree in economics either”



This is in response to Mnuchin saying that Thunberg should study economics. pic.twitter.com/W8JFqbWIdd — Yashar Ali (@yashar) January 25, 2020

During an address to a room full of business and political leaders at Davos, Thunberg told the gathering that they are not doing enough to combat climate change, urging the leaders to treat the situation as a "real crisis."

Mnuchin, who is a former investment banker and Hollywood film producer, dismissed Thunberg’s ideas, suggesting that after “she goes and studies economics in college, she can come back and explain that to us."

Thunberg responded to the remarks saying, "We are being criticized like that all the time, and if we would care about that we wouldn't be able to do what we do."

President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE also told the Wall Street Journal during an interview at Davos that he didn't know anything about the teenage Swedish activist, and called her "very angry."