Meeting Cop26 finance goals ‘going to be tough’, says Boris Johnson

Prime minister estimates just 60% chance of securing $100bn in aid pledges before Glasgow conference

Boris Johnson has said he fears there is only a 60% chance that the $100bn in climate finance viewed as key to securing an ambitious outcome to the Cop26 summit will be in place by the time world leaders meet in Glasgow in November.

Speaking to journalists en route to New York at the start of a three-day visit to the US, in which he hopes to galvanise" progress towards a new climate deal, the prime minister said he would be urging developed countries to come forward with additional funding.