Dr. Mahatab Uddin, a postdoctoral scholar in the School of Environmental Design and Rural Development at the University of Guelph, participated in the Intergovernmental Panel on Climate Change [1] (IPCC), which is the United Nations body for assessing the science related to climate change.  Dr. Uddin served as a Lead Author for Working Group III of the IPCC’s Seventh Assessment Report (AR7). He joined more than 600 experts to begin work on the first draft of the AR7, who were appointed to the three Working Groups of the IPCC that gathered in Paris, France, from December 1-5, 2025. This was the first time in the IPCC’s history that the three Working Groups held a joint Lead Author Meeting.

At the invitation of the French government - through the Ministry of Ecological Transition, Biodiversity, and International Negotiations on Climate and Nature, the Ministry of Education and Research, and the Ministry for Europe and Foreign Affairs, the authors representing more than 100 countries, focused on the initial drafts of the three Working Group contributions to AR7 and on cross-cutting themes. Bringing together authors from all three Working Groups in one venue was intended to support an ambitious qualitative advance in assessing key interdisciplinary issues related to climate change.

Dr. Uddin is also an adjunct faculty member in SEDRD and collaborates with Dr. Ataharul Chowdhury on climate change, the legal and ethical aspects of artificial intelligence, and intellectual property rights.