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The Paris Agreement cleared the final hurdle to enter into force on October 5, 2016, after the European Union submitted its instrument of ratification to the United Nations and the two thresholds of 55 countries and over 55% of global emissions were reached.


WRI assessed the national constitutions of the top 100 greenhouse gas emitters to understand the process by which each country is authorized to deposit its instrument of ratification, acceptance, or approval and join the Paris Agreement as a Party. The extent and breadth of domestic political support that each country will need in order to join the Paris Agreement will depend, at least in part, on its type of process for joining the Agreement. This analysis forms the basis of the Domestic Approval Map within WRI’s Paris Agreement Tracker.

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On Track from Paris maps implementation milestones of key elements of the Paris Agreement. Be sure to mind the gaps and avoid delays to stay on track for an on time arrival at the first session of the Paris Agreement (CMA1).


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