Any agreement providing for the entry or reentry of the United States into an international climate agreement or an agreement mandating legally binding reductions in domestic greenhouse gas emissions, including the decision of the 21st Conference of Parties of the United Nations Framework Convention on Climate Change, adopted in Paris December 12, 2015 (commonly known as the “Paris Agreement”), shall be considered a treaty and submitted to the Senate for its advice and consent under clause 2 of section 2 of article II of the Constitution of the United States.