As a nationalist I fully support the decision of President Trump to pull out of the Paris deal. My objection is not based on the environment but rather on the fact that the restrictions on the US are much harsher than the restrictions on China, India, and our other competitors despite these countries producing just as much if not more pollution than the US. If democrats and other environmentalists wanted nationalist support for something like this they would simply have to make sure that our competitors are hit harder than we are and we would gladly take the comparative advantage.
President Trump has the opportunity to exit the agreement the proper way and I fear he will miss it. The worst way President Trump can exit the treaty is the same way Obama entered it: By executive action. When this treaty was offered to the countries of the world it was ratified by their respective legislatures. It was only the US, with the dictatorships of the world, who entered to it soley on the will of one man, Barrack Obama. Instead of saying that the US will pull out of the agreement President Trump should do what should have been done in the past and send it to the senate. This creates precedent for things like this to be ratified by the senate in the future.
There is also a hidden provision in the Paris agreement that we need to pay attention to. Article 28 section 1 says that a nation can only withdraw from the agreement three years after the agreement was entered into. With this provision we are stuck in the agreement for 3 years. If the decision gets sent to the senate and they fail to ratify then we would never have entered into the treaty in the first place and can leave it as soon as possible.