Oxford professor Ian Goldin spoke to HuffPost Live at the World Economic Forum in Davos on Thursday.
In his interview, he stressed the need for global powers to tackle climate change-- and soon.
"On something pressing like this, citizens have to act, cities have to act, states have to ask and corporates have to act," he said." Climate change "is not something that's waiting."
Watch his full interview with HuffPost Live above. For HuffPost's full Davos coverage, click here.