US Treasury Secretary Steven Mnuchin advised Swedish climate activist Greta Thunberg on Thursday, January  23, also present at the World Economic Forum in   Davos to , "study economics and go to college."

Questioned about the claim of the young Swedish woman, who calls for an immediate cessation of investments in fossil energies, he  responded in a press conference: "Let her  first study economics and go to university, and then she can visit us again."

Trump administration  officials and Greta Thunberg have been opposed since Tuesday in Davos, but so far more veiled, and have never met physically reports AFP

US President Donald Trump criticized the "prophets of misfortune and climate apocalypse predictions" on Tuesday, in a speech attended by the militant. Shortly before leaving the Swiss ski resort on Wednesday, he said he would have "loved" to meet her.

Greta Thunberg, meanwhile, repeated her virulent warnings to the political and economic elite, hammering that it was time to "panic" because "the house burns," as she did last year in Davos reports AFP.