Billionaire Elon Musk said on Wednesday he would leave President Trump's Business Advisory Council if the White House withdraws from an international agreement aimed at curbing climate change. From a report: The appeals from chief executives such as Tesla's Musk, Tim Cook of Apple and Dow Chemical's Andrew Liveris come as Trump's advisers also present him with closing arguments on the potential risks and rewards of remaining a party to the global pact. Trump also got an earful from foreign leaders and Pope Francis urging him to stay in the agreement during his first international trip as president. Cook placed a call to the White House on Tuesday to urge the president to keep the U.S. in the agreement, according to a person familiar with the move. Liveris was the driving force behind a letter from 30 major company executives backing the deal. And Musk tweeted Wednesday that he has "done all I can to advise directly to" Trump. If the U.S. leaves Paris, Musk said he would drop participation in White House advisory councils. [...] Twenty-five companies, including Intel, Microsoft and PG&E, have signed on to a letter set to run as a full-page advertisement in the New York Times and Wall Street Journal on Thursday arguing in favor of climate pact.