“…Studies that quantify conference travel emission reduction options focus most often on optimization of a single conference location (Astudillo & AzariJafari, 2018; Desiere, 2016; Fois, Cuena‐Lombraña, Fristoe, Fenu, & Bacchetta, 2016; Kuonen, 2015; Stroud & Feeley, 2015), followed by a shift to land transport (Desiere, 2016; Fois et al., 2016; Kuonen, 2015; Neugebauer, Bolz, Mankaa, & Traverso, 2020), multi‐site conferencing (Coroama, Hilty, & Birtel, 2012; Hischier & Hilty, 2002; Orsi, 2012; Parncutt, Meyer‐Kahlen, & Sattmann, 2019), and excluding long‐distance flyers (Desiere, 2016) (an overview is provided in Table S2‐1 in Supporting Information S2). Hischier and Hilty (2002) assessed a fully virtual conference, which is generally assumed to require a negligible amount of travel.…”