'Don't need degree to know about climate targets': Greta to US Treasury chief

US Treasury Secretary Steven Mnuchin told Greta Thunberg on Thursday she should study economics, a jibe which prompted the climate activist to say she did not need a degree to know the world was not meeting its climate targets. Thunberg, who has taken a year off school to advocate action on climate change, hit back on Twitter, saying it did not take a degree to know the world was not meeting its climate targets.