US President Donald Trump said Thursday that "something could happen" regarding the Paris climate accord following his decision to withdraw from the landmark global agreement to limit climate change. Trump was speaking at a joint news conference with his French counterpart Emmanuel Macron, who had earlier said he hoped to persuade the US leader to change his mind. "Something could happen with respect to the Paris accord," Trump said, six weeks after announcing that the United States would abandon the 2015 pact.