'Transition from fossil fuels has to be real,' John Kerry tells Paste BN at World Economic Forum in Davos
Senior US politician is pushing his climate agenda at the economic forum but also says it is "too early to tell" about the way the American people might vote in the forthcoming presidential election.
Please use Chrome browser for a more accessible video player
0:37
The US climate envoy speaks to Sky's Ed Conway in Davos, saying that businesses 'need to seize opportunities' in the move towards transition from fossil fuels.