UN urges business leaders to double investment in green energy by 2020

Rapid transition from fossil fuels to wind and solar is needed to ensure the success of the Paris climate agreement, says secretary general, Ban Ki-moon

The United Nations urged global business leaders on Wednesday to double investment in wind and solar energy to $600bn (400bn) a year by 2020.

One month after the Paris climate agreement, Ban Ki-moon, the UN secretary general, told business leaders they needed to act decisively to hasten the transition away from the fossil fuel economy - or they would put the historic accord in jeopardy.