Sara Sayedi is a Ph.D. student working on combining expert opinions to assess risk of dangerous change in Earth systems (permafrost collapse, global wildfire, and water security). She earned a BS in environmental science at Isfahan University of Technology in Iran, and an M.S. at University of Tehran, where she specialized in environmental management. Her thesis was entitled "Modelling Hydrological Ecosystem Services for Different Land Use and Climate Change Scenarios". Sara’s research interests include ecosystem services, environmental changes, risk assessment, and environmental applications of Remote Sensing and Geographic Information Systems. In her spare time, she likes to paint, read novels, and cook different Persian foods.