You`ve probably seen the headlines — the U.S. government has revised its participation in the Paris Agreement, the historic U.N. climate agreement, which brings together all the United Nations to meet the global challenge of climate change. As experts and advisers argue about the value of U.S. compliance in this agreement, here are seven reasons why participation in the Paris Agreement is important to the United States – and the climate agreement itself. The authors of the agreement have set a withdrawal period that President Trump must follow – which prevents him from irreparably harming our climate. President Trump is pulling us out of the Paris climate agreement. Indeed, research shows that the cost of climate activity far outweighs the cost of reducing carbon pollution. A recent study suggests that if the United States does not meet its climate targets in Paris, it could cost the economy up to $6 trillion in the coming decades. A lack of compliance with the NPNs currently foreseen in the agreement could reduce global GDP by more than 25% by the end of the century. Meanwhile, another study estimates that achieving – or even exceeding – the Paris targets by investing in infrastructure in clean energy and energy efficiency could have great benefits globally – about $19 trillion.
The Paris Agreement was launched at the signing on April 22, 2016 (Earth Day) at a ceremony in New York.  After the agreement was ratified by several EU member states in October 2016, there were enough countries that had ratified the agreement to produce enough greenhouse gases in the world for the agreement to enter into force.  The agreement came into force on November 4, 2016.  Although the agreement has been welcomed by many, including French President Francois Hollande and UN Secretary-General Ban Ki-moon, criticism has also emerged. James Hansen, a former NASA scientist and climate change expert, expressed anger that most of the agreement is made up of „promises“ or goals, not firm commitments.  He called the Paris talks a fraud with „nothing, only promises“ and believed that only a generalized tax on CO2 emissions, which is not part of the Paris agreement, would force CO2 emissions down fast enough to avoid the worst effects of global warming.  The president`s promise to renegotiate the international climate agreement has always been a smokescreen, the oil industry has a red phone at the Interior Department, and will Trump bring food trucks to Old Faithful? To offset the effects of climate change, it is not enough to balance individual measures (although they are important).