Answer :
The UN climate change conference is known as the Conference of the Parties (COP), which is the main decision-making body of the UNFCCC. (Option D)
The United Nations climate change conference is called the Conference of the Parties (COP). This conference serves as the main decision-making body of the United Nations Framework Convention on Climate Change (UNFCCC). Since its inception, the COP has been the venue for crucial climate agreements such as the Kyoto Protocol and the Paris Agreement. Climate action is essential to prevent dangerous anthropogenic interference with the climate system, to protect vital ecosystems, ensure food security, and to enable sustainable economic development.