Special envoy Kerry says 1.5C target still ‘doable’ but will be ‘very difficult’

US climate envoy John Kerry has said he is not willing to give up on the goal of limiting rising temperatures to 1.5C – although he conceded achieving this target will be “very difficult”.

Almost 200 countries from across the world signed up to the goal of limiting global warming to 1.5C from pre-industrial levels, with this a key part of the Paris Agreement, signed in 2015.