The delay is due to the complex rules introduced in the Paris agreement to deal with the possibility that a future US president will decide to withdraw the country from the agreement. The Eiffel Tower in Paris, to celebrate the entry into force of the Paris Agreement, November 4, 2016, the most ambitious climate change agreement in history (Photo: Jean-Baptiste Gurliat/Mairie de Paris) revealed a public opinion poll conducted from June 2 to 4, 2017 by the Washington Post/ABC News among American adults, which was carried out from June 2 to 4, 2017, according to which 59 percent rejected Trump`s decision to withdraw the United States from the Paris agreement and supported only 28%. When asked about the impact of the withdrawal on the U.S. economy, 42 percent said it would hurt the economy; 32% thought it would help the economy; And 20% thought it wouldn`t make any difference.   The poll showed a clear division between party lines: 67 percent of Republicans supported Trump`s decision, but only 22 percent of independents and 8 percent of Democrats supported them.  « You say that if the United States is not there, we must not rush to do anything at this point, » said Carlos Fuller, negotiator of the Alliance of Small Island States. The Tampa Bay Times criticized the move and wrote that it would primarily endanger coastal states like Florida, which are already suffering from rising sea levels, harming property and infrastructure, and harming drinking water supplies.  The Detroit Free Press stated that « President Donald Trump has betrayed the future of our children, our grandchildren and our planet. »  « What Obama did at the end of his second term was fundamentally undemocratic to sign a Paris agreement without going to the Senate and Congress and doing it instead via an executive, » said yvo De Boer, former UN climate chief. So if it becomes the only country to withdraw from a global solution to a global problem, it raises questions of trust.
All remaining parties to the agreement must present their new 2030 targets before the next major UN climate meeting, to be held in Glasgow, UK, in November 2021 (this year`s climate summit has been postponed due to the pandemic).