US President Donald Trump has said that his primary concern with the Paris climate accord was that it treated the United States unfairly and that if a better deal could be reached, Washington might be persuaded to rejoin the agreement. <br/><br/>During a news conference with Norwegian Prime Minister Erna Solberg, Trump said, he has no problem with agreeing to a climate deal but the Paris accord was a bad deal. So we could conceivably go back in.<br/><br/>