Thunberg responded to Mnunchin’s apparent dismissal of her by tweeting out a graph from a U.N. report on the world’s remaining carbon budget, a topic she also addressed in her Davos speech.

“My gap year ends in August, but it doesn’t take a college degree in economics to realise that our remaining 1,5° carbon budget and ongoing fossil fuel subsidies and investments don’t add up,” Thunberg wrote without addressing Mnuchin by name.

“So either you tell us how to achieve this mitigation or explain to future generations and those already affected by the climate emergency why we should abandon our climate commitments,” she added.

Linton echoed Thunberg’s position in her post.

“We need to drastically reduce our use of fossil fuels,” she wrote. “Keep up the fight @gretathunberg.”

🚨Louise Linton comes out against her own husband, Steve Mnuchin, to side with Greta Thunberg🚨



Earlier this week, Mnuchin said Thunberg could explain climate change, “after she goes and studies economics in college.” pic.twitter.com/DgEMi8qKXR — Olivia Nuzzi (@Olivianuzzi) January 25, 2020

The post was deleted after about 30 minutes according to journalist Olivia Nuzzi, who flagged the post to her followers.

Mnuchin isn’t the only member of the Trump administration to mock Thunberg, who has gained worldwide fame for her support of climate change initiatives.

“So ridiculous. Greta must work on her Anger Management problem, then go to a good old fashioned movie with a friend! Chill Greta, Chill!” President Donald Trump, who has routinely gone after Thunberg for her activism, tweeted in December after she was named Time’s Person of the Year.