Thelma Krug is a former researcher at the Earth Observation Coordination at the National Institute for Space Research in Brazil, under the Ministry of Science, Technology, Innovation and Communication (MCTIC). She was elected Vice-Chair of the Intergovernmental Panel on Climate Change (IPCC) for the Sixth Cycle of Panel (October 2015 – October 2022), after having been co-chair of the IPCC Task Force on National Greenhouse Gas Inventories from 2002 until 2015. She holds a PhD on Spatial Statistics from the University of Sheffield, UK.  She has been Deputy National Secretary at the Secretary on Policies and Programs of Science and Technology at MCTIC; National Secretary at the Secretary on Climate Change and Environmental Quality from the Ministry of the Environment (MMA) and Director of the Department on Policies to Combat Deforestation under the Secretary of Climate Change and Forests at MMA. For more than 15 years she represented Brazil in the negotiations at the United Nations Framework Convention on Climate Change (UNFCCC), with particular focus on issues related to land use, land-use change and forestry (LULUCF); research and systematic observations; and reporting guidelines. Her main areas of interest are climate change and the role of deforestation, forest degradation and land-use change; REDD+; and national greenhouse gas inventories.