The 21st Conference of the Parties to the United Nations Framework Convention on Climate Change (UNFCCC) took place in Paris from 30 November to 12 December 2015.
Bhí 21ú Comhdháil Pháirtithe Chreat-Choinbhinsiún na Náisiún Aontaithe maidir leis an Athrú Aeráide (UNFCCC) ar siúl i bPáras ón 30 Samhain go dtí an 12 Nollaig 2015.