The level of the NDC set by each country will determine the objectives of that country. However, the “contributions” themselves are not binding under international law because of the lack of specificity, normative nature or language necessary to establish binding standards.  In addition, there will be no mechanism to compel a country to set a target in its NDC on a specified date and not for an application if a defined target is not achieved in an NDC.   There will be only a “Name and Shame” system  or as UN Deputy Secretary General for Climate Change, J. Pésztor, CBS News (US), a “Name and Encouragement” plan.  Since the agreement has no consequences if countries do not live up to their commitments, such a consensus is fragile. A cattle of nations withdrawing from the agreement could trigger the withdrawal of other governments and lead to the total collapse of the agreement.  The Paris Agreement sets a target of limiting global warming to 2 degrees Celsius (ideally 1.5 degrees Celsius) by 2030. The goal is to achieve this goal through national contributions (NDCs) to reduce greenhouse gas emissions. While the Paris Agreement provides a broad framework, details of the implementation, monitoring and implementation of new institutions have yet to be detailed. The Paris Agreement was adopted on 12 December 2015 at COP21 in Paris, France, by the Conference of the Parties (COP) of the United Nations Framework Convention on Climate Change (UNFCCC). The Vienna Convention on Treaty Law provides for the adoption of the formal act, the form and content of an agreement.
In adopting the Paris Agreement, each of the contracting parties approved the text of the Paris Agreement. This does not mean that the parties to the UNFCCC will automatically become parties to the Paris Agreement. The suspension of the first meeting would mean that the first meeting could last more than a year or, if necessary, several years before the work is completed in accordance with the timetable agreed by the parties to COP21.