40 For example, the text distributed in the middle of last week had only about fifty square brackets, against the nine hundred parentheses of the text that the ADP had sent to ministers at the beginning of the week. For the follow-up of parentheses in successive negotiating projects, see the Paris Agreement. ORG, parisagreement.org (the last visit took place on 15 April 2016). The agreement stipulates that it would only enter into force (and therefore fully operational) if 55 countries emitting at least 55% of global greenhouse gas emissions (according to a list established in 2015)  ratify, accept, approve or accede to the agreement.   On April 1, 2016, the United States and China, which together account for nearly 40% of global emissions, made a joint statement confirming that the two countries would sign the Paris climate agreement.   175 parties (174 states and the European Union) signed the agreement on the first day of its entry for signature.   On the same day, more than 20 countries made a declaration of intention to accede as soon as possible in order to accede in 2016. With ratification by the European Union, the agreement obtained enough parts to enter into force on 4 November 2016. 188 Paris Pledge for Action, on www.parispledgeforaction.org/about/ (last visited march 15, 2016).
Article 28 of the Agreement allows the parties to terminate the contract after having sent a notification of resignation to the depositary. The denunciation may take place for the country no earlier than three years after the entry into force of the agreement. The revocation shall take effect one year after the notification of the depositary. Full-text views reflect PDF downloads, PDFs sent to Google Drive, Dropbox, and Kindle, and full-text html views. 19 At the United Nations signing ceremony on 22 April 2016, 175 countries signed the Paris Agreement, apparently most of those that have never signed an international treaty in a single day. A list of signatories can be found at www.un.org/sustainabledevelopment/blog/2016/04/parisagreementsingatures/. Only Nicaragua expressed objections to the agreement, both at the closing plenary session of COP-21 and at the signing ceremony. See the statement by Paul Oquist Kelley, Minister, Private Secretary for National Policy to the President of Nicaragua, at the high-level signing ceremony (Apr. . . .