Let me be very clear: "President Trump absolutely believes in clean air and clean water and having a clean environment", he said.
Thunberg told reporters before the protest that she and other young activists have always been criticized with comments like that.
Swedish climate worrier Greta Thunberg held a press conference in Davos, Switzerland, on Friday and complained the climate movement's demands (on fossil fuel divestment) have been "completely ignored" this week by attendees at the World Economic Forum.
Ms Thunberg, who led a panel of fellow activists, refused to say whether the carbon impact of nearly 3,000 delegates flying to Davos from all over the world was worth it: "We just took this opportunity to be here, where many world and business leaders are gathered".
Other netizens sided with the Secretary of the Treasury and opined that the 17-year-old is used by left-wing parties to push through their agenda.More news: Nicole Kidman, Hugh Grant Star In ‘The Undoing’ Trailer
UN Secretary General Antonio Guterres warned at Davos this year that climate change could leave humanity "doomed".
Many netizens challenged Thunberg on her claim that fossil fuels are damaging to the climate, saying the information she provided is inaccurate. "Who is she? I'm confused", said Mnuchin, emphasizing after a break that this was a joke.
The 50th edition of the World Economic Forum is taking place in Davos, which brings business leaders, world leaders and representatives together on one table to discuss issues of mutual concern.
Mnuchin said the Trump administration's stance on climate and Thunberg's criticism had been "misunderstood".
"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", Thunberg, said days after addressing a packed panel at the Davos summit, where she has been a star attraction.More news: ECB Leaves Rates Unchanged, As Expected; Euro Stable
"We want to show the people from WEF who want to make money that even though we're young, we still care about the issues".
Resolving the Trump administration's position on environment, Mnuchin specified the US position had in fact been "misinterpreted".
"We never striked for discourse change", said Neubauer, who this month turned down the offer of a board seat on a subsidiary of German industrial giant Siemens. "From the first day onward, we've striked for actual climate action".
This year's gathering put the climate crisis centre stage.More news: Texas A&M student being examined as potential coronavirus case