President Trump has pledged to cancel U.S. participation in the United Nations climate agreement signed last year by President Obama in Paris. However, various media sources are reporting that the president has backed off of this campaign commitment due to lobbying from daughter Ivanka Trump and her husband Jared Kushner, who reportedly support the UN Paris Agreement. Also in the global-warming alarmist camp, apparently, is Secretary of State Rex Tillerson. There are many compelling arguments for President Trump to make good on this signature campaign promise, notwithstanding the dissidents within his family and his cabinet. Cost alone provides sufficient reason...