Donald Trump has said he will decide whether to pull out of a key climate change deal in the next week, having apparently shrugged off pressure from US allies in recent days.
The US president tweeted he would make his “final decision” on the Paris accord after his return to Washington.
Mr Trump left the G7 summit in Sicily on Saturday without reaffirming his commitment to the accord, unlike the other six world leaders in attendance.
He previously threatened to pull out.
Mr Trump, who has called climate change “a hoax” on occasion, has reportedly indicated this is still his position to key members of his inner circle.
The uncertainty over his position on the Paris agreement puts him at odds with other members of the G7.