President Joe Biden’s ambitious climate plan to halve the US emissions by 2030 may not have the support from Congress it needs “to match the aspiration” of what it is trying to achieve, according to US Studies Centre CEO Simon Jackman.

“To reach the ambition he even laid out for the 2030 target he needs Congress to act, I don’t know if the appetite is there in Congress to match the aspiration he talked about in the global climate summit,” he told Sky News.