Hossa is a research fellow at KAPSARC. She is also currently the Think20’s (T20’s) Sherpa and is leading T20 Saudi Arabia’s secretariat. She is also the lead co-chair of T20 Saudi Arabia’s task force “sustainable energy, water and food systems.” Before joining KAPSARC, Hossa was a faculty member at the University of Wilfrid Laurier, Canada. Her research interests include developing energy and economic models to study the impact of energy and environmental policies on economies, sustainable development and wealth accounting. Her work aims to provide policymakers and practitioners with decision support tools that can help identify the challenges, opportunities, and solutions associated with moving toward sustainable energy and sustainable business practices. Her work has been published in many peer-reviewed journals. She has a Ph.D. and a master’s degree in applied operations research from the University of Waterloo, Canada, and a bachelor’s degree in business administration from King Abdulaziz University, Saudi Arabia.