The Paris Agreement is the first legally binding universal global agreement on climate change adopted at the Paris Climate Change Conference (COP21) in December 2015. When world leaders celebrated in Paris in December 2015 that they reached a pioneering agreement on climate change, the Eiffel Tower and the Arc de Triomphe were illuminated by green flood lights and the embassy “Paris Agreement is done!” (The Paris Agreement is concluded!). Now, five years of turbulence later, a new slogan could be “work in progress.” The most important thing is that the world has been structured around a new goal based on the Paris objectives, but which is not explicit in the agreement: zero net emissions. Over the past two years, a stream, and now a flood of countries, have pursued long-term goals to reduce their greenhouse gas emissions to a fraction of their current amount, to the point of reducing them to carbon, such as forests. Under the Paris Agreement, each country must define, plan and report regularly on its contribution to the fight against global warming.  There is no mechanism for a country to set an emission target for a specified date, but any target should go beyond the previous targets. The United States formally withdrew from the agreement the day after the 2020 presidential election, although President-elect Joe Biden said America would return to the agreement after his inauguration.  Nicholas Stern, the climate economist, embraced Xia Zhenhua, the usually reserved Chinese minister, while The Crees and The Crees resonated in the room. “I had the impression that the Paris agreement was the moment when the world decided to really seriously manage climate change,” he said.
“We were all inside together, people understood that.” On August 4, 2017, the Trump administration officially announced to the United Nations that the United States intends to withdraw from the Paris Agreement as soon as it is legally entitled to it.  The formal declaration of resignation could not be submitted until after the agreement for the United States came into force on November 4, 2019 for a three-year date.   On November 4, 2019, the U.S. government filed the withdrawal notice with the Secretary-General of the United Nations, custodian of the agreement, and formally withdrew from the Paris Agreement a year later, when the withdrawal came into effect.  After the November 2020 elections, President-elect Joe Biden promised to reinstate the United States in the Paris Agreement for his first day in office and renew the U.S. commitment to climate change mitigation.   According to Laurent Fabius, the signs of this decisive moment are good. Biden`s election to the United States means that it will move closer to the EU and China if it insists that net zero emissions be fully implemented. “We will have the link of the planets that made the Paris agreement possible,” Fabius told the Guardian. “Civil society, politics and the economy came together for the Paris Agreement. We consider the same connection of the planets with the United States, the EU, China, Japan — if the big ones go in the right direction, there will be a very strong incentive for all countries to move in the right direction.
In the meantime, the clock is ticking. At current rates, according to a project that tracks CO2 emissions, the world has 7 years to go before it has exhausted its carbon budget to keep the temperature increase below 1.5 degrees Celsius.