Mark Trexler

Dr. Mark C. Trexler has more than 30 years of climate change experience, and has advised clients around the world on climate change risk and risk management. Mark joined the World Resources Institute in Washington, DC, in 1988, where he worked on the first carbon offset project, the CARE Agroforestry Project in Guatemala, as well as the first studies of nature-based solutions to climate change.

Mark has served as a lead author and editor for the Intergovernmental Panel on Climate Change, and founded and directed Trexler Climate + Energy Services (TC+ES) from 1991–2007. He was most recently Director of Climate Risk for the global risk management firm of Det Norske Veritas (based in Oslo). He is widely published on climate change topics, particularly those relating to carbon offsets, societal risk, and business risk management.

Mark has a long-time interest in how knowledge management tools can help individuals have more productive lives, and in how knowledge management can help tackle complicated societal problems like climate change. Mark is the co-developer of the Climate Web, which uses TheBrain knowledge management software, and is the closest thing today to a collective climate change intelligence. Indeed, much of the content of Mark's Udemy courses is delivered from within the Climate Web. But Mark also uses TheBrain software in his personal life, having settled on TheBrain after exploring many other knowledge management tools over the years. 

Mark has lived around the world and speaks five languages, and holds advanced degrees from the University of California at Berkeley.