In response to the climate challenge, the agreement recognizes that states have common but differentiated responsibilities, i.e. according to their national capabilities and specificities. Article 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 long-term objective of the Paris Agreement is to keep the increase in global average temperature well below 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels; and to continue efforts to limit the increase to 1.5 degrees Celsius, while acknowledging that this would significantly reduce the risks and effects of climate change. This should require a rapid reduction in emissions to achieve “a balance between anthropogenic emissions from sources and the reduction of greenhouse gases from wells” in the second half of the 21st century. It also means increasing the parties` ability to adapt to the negative effects of climate change and “reconciling financial flows with a way to reduce greenhouse gas emissions and climate-resistant development.” The EU and its member states are among the nearly 190 parties to the Paris Agreement. The EU formally ratified the agreement on 5 October 2016, allowing it to enter into force on 4 November 2016.
In order for the agreement to enter into force, at least 55 countries representing at least 55% of global emissions had to file their ratification instruments. 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.  The level of the NDC defined by each country will determine the objectives of that country.