fire Concept Paper Defining Extreme Wildfire Events: Difficulties, Challenges, and Impacts Fantina Tedim 1,2,*, Vittorio Leone 3,†, Malik Amraoui 4 ID , Christophe Bouillon 5 ID , Michael R. Coughlan 6 ID , Giuseppe M. Delogu 7,† ID , Paulo M. Fernandes 4 ID , Carmen Ferreira 1 ID , Sarah McCaffrey 8 ID , Tara K. McGee 9, Joana Parente 4, Douglas Paton 2, Mário G. Pereira 4,10 ID , Luís M. Ribeiro 11 ID , Domingos X. Viegas 11 and Gavriil Xanthopoulos 12 1 Centre for Studies in Geography and Spatial Planning, CEGOT, Geography Department, Faculty of Arts, University of Porto, Porto 4150-564, Portugal;
[email protected] 2 Engineering Health Science & Environment, Charles Darwin University, Darwin, Northern Territory 0909, Australia;
[email protected] 3 Department of Crop Systems, Forestry and Environmental Sciences, Faculty of Agriculture, University of Basilicata, Potenza 85100, Italy;
[email protected] 4 Centre for Research and Technology of Agro-Environment and Biological Sciences, CITAB, University of Trás-os-Montes and Alto Douro, Vila Real 5001-801, Portugal;
[email protected] (M.A.);
[email protected] (P.M.F.);
[email protected] (J.P.);
[email protected] (M.G.P.) 5 National Research Institute of Science and Technology for Environment and Agriculture, IRSTEA, RECOVER Research Unit, Aix-en-Provence 13100, France;
[email protected] 6 Department of Anthropology, University of Georgia, Athens, GA 30602, USA;
[email protected] 7 Regional Forest Corps of Sardinia, Cagliari 09131, Italy;
[email protected] 8 USDA Forest