The conditions for the entry into force of the Paris Agreement on climate change were met on 5 October, when several EU countries deposited their instruments of ratification, thus crossing the threshold of 55 countries, representing 55 percent of global emissions, that will trigger its implementation. As of today, 74 Parties covering more than 58 per cent of Global Greenhouse Gas Emissions have ratified this landmark document, which will become fully operational on 4 November.

http://www.unesco.org/new/en/unesco/about-us/who-we-are/director-general/singleview-dg/news/unesco_welcomes_entry_into_force_of_the_paris_agreement_on_c/#.V_3CR_l96JA