The Working Group on Climate Change was established by HLCP in 2007 with the aim of of facilitating a coherent approach and joint action of the United Nations system on climate change. Until the conclusion of its mandate in 2016, the Working Group served as a platform to share climate-related information and knowledge among its members; initiate joint implementation of climate action; inform CEB members on climate change issues; coordinate the UN system’s engagement in the UNFCCC COPs and other relevant fora; and prepare joint outreach and communication tools.