After ratification, the agreement requires governments to submit their emission reduction plans. Ultimately, they must play their part in keeping global temperatures well below 2 degrees Celsius above the pre-industrial period and making “efforts” to keep them at 1.5 degrees Celsius. There are reporting obligations to ensure that countries move forward, but the Trump administration has not complied with them and has not yet suffered any consequences. Another key difference between the Paris Agreement and the Kyoto Protocol is its scope. While the Kyoto Protocol distinguishes between Schedule 1 countries and those not annexed to Schedule 1, this branch is scrambled in the Paris Agreement, as all parties must submit emission reduction plans.  While the Paris Agreement continues to emphasize the principle of “common but differentiated responsibility and respective capabilities” – the recognition that different nations have different capacities and duties to combat climate change – it does not offer a specific separation between developed and developing countries.  It therefore appears that negotiators will have to continue to address this issue in future rounds of negotiations, although the debate on differentiation could take on a new dynamic.  The delay is due to the complex rules introduced in the Paris Agreement to deal with the possibility that a future president of the United States will decide to withdraw the country from the agreement. This provision requires the “link” between different CO2 emission trading systems – since measured emission reductions must avoid “double counts,” the transferred mitigation results should be considered as a gain on emission units for one part and as a reduction in emission units for the other party.
 Due to the heterogeneity of NDCs and national emissions trading systems, ITMOs will provide a format for global connections under the aegis of the UNFCCC.  This provision also puts pressure on countries to implement emission management systems – if a country wants to use more cost-effective cooperative approaches to achieve its NPNs, they need to monitor carbon units for their economies.  In one year, on November 4, 2020, the United States will officially leave the Paris Agreement. It`s the day after the presidential election. The United States could resume the pact within 30 days of a request to the United Nations.