Implementation of the agreement by all Member States will be evaluated every five years, with the first evaluation in 2023. The result will be used as an input for new national contributions from Member States.  The inventory will not be national contributions/achievements, but a collective analysis of what has been achieved and what remains to be done. Energy Innovation and the NCSC built the first version of the system`s dynamic model. The name of this model is the China Energy Policy Simulator. China-specific data for the model were collected largely from public sources or provided by NCSC. A public web version of the model is available under china.energypolicy.solutions. The structure of the model is entirely open source and has been verified by other institutions, including Argonne National Lab and Lawrence Berkeley National Lab. Readers can experiment with the online model to get an idea of how this model works.
Some construction baseline assumptions have been updated in the version developed by Energy Innovation and NCSC for this study, including reduced renewable energy capacity, updated capacity factors for different production technologies, and fuel consumption standards for passenger cars. All directives were coded on the basis of assumptions about the annual rigour and timing of each directive on the basis of current literature. All guidelines can be activated separately or in conjunction with others, so that interactions between them can be taken into account. To assess whether China`s climate policy can achieve its objectives, we have only modelled two scenarios: first, the baseline scenario, which is business as-usual, where no climate change policy is applied, and the other is the “political package” scenario, in which all existing and future climate change policies are activated (Table 2). The policy package scenario was developed by Tufts University`s Climate Policy Lab based on the policy inventory and expert development. On November 4, 2019, the United States informed the custodian of its withdrawal from the agreement, which will take effect exactly one year after that date.  Section 28 of the agreement allows the parties to terminate the contract following a notification of an appeal to the custodian. This notification can only take place three years after the agreement for the country comes into force. The payment is made one year after the transfer.
Alternatively, the agreement provides that the withdrawal of the UNFCCC, under which the Paris Agreement was adopted, also withdraws the state from the Paris Agreement. The terms of the UNFCCC`s exit are the same as those of the Paris Agreement. There is no provision in the agreement for non-compliance. The aim of the agreement is to reduce the global warming described in Article 2 and to improve the implementation of the UNFCCC by:, although the agreement has been welcomed by many, including French President Francois Hollande and UN Secretary-General Ban Ki-moon has also been the subject of criticism. 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 Paris Agreement is the world`s first comprehensive climate agreement.  On June 1, 2017, U.S. President Donald Trump announced that the United States would withdraw from the agreement.  Under Article 28, the effective withdrawal date of the United States is the fastest possible date, given that the agreement entered into force in the United States on November 4, 2016.