Cameroon had earlier signed the global treaty.
Cameroon closely follows Peru, which recently did likewise
At the twenty-first session of the Conference of the Parties (COP), held in Paris, France, the Parties adopted the Paris Climate Change Agreement under the United Nations Framework Convention on Climate Change (UNFCCC).
The Agreement was opened for signature on 22 April 2016 at a high-level signature ceremony convened by the Secretary General in New York. At that ceremony, 174 States and the European Union signed the agreement and 15 States also deposited their instruments of ratification.
As of 29 July 2016, there are 179 signatories to the Paris Agreement. Of these, 21 States have also deposited their instruments of ratification, acceptance or approval accounting in total for 0.85 % of the total global greenhouse gas emissions.
The Agreement shall enter into force on the 13th day after the date on which at least 55 Parties to the Convention accounting in total for at least an estimated 55 % of the total global greenhouse gas emissions have deposited their instruments of ratification, acceptance, approval or accession with the Depository.
Nigeria has neither signed nor ratified the treaty.