U.S. tells Thunberg to 'study economics' in Davos climate spat

DAVOS, Switzerland – The United States' financial chief on Thursday, January 23, told Swedish teen Greta Thunberg to go study before calling for a fossil fuel halt, prompting the climate campaigner to reply it doesn't "take a degree" to understand the science.

The spat between US Treasury Secretary Steven Mnuchin and ...