Declining lake ice in response to climate change can impact spending for local communities

S2 Table. Summary statistics of currently estimated lake ice area and future predicted ice area under three greenhouse gas scenarios (RCPs). Included for each country are the carbon emissions (metric tons per capita), annual freshwater withdrawal (billions of cubic meters of water), country population (millions of people), and the Gross Domestic Product (millions of USD). A three-letter country code is provided that is used in all figures. (PDF) S1 File. An examination and discussion of uncertainty when estimating the future costs of lake ice loss. (DOCX) Acknowledgments We thank Ida Ferrara from the Department of Economics at York University, Edward Furman from the Department of Mathematics and Statistics at York University, and Sogee Spinner from the Toronto Dominion Bank for their assistance and support on the economic analysis. For producing the future lake model simulations, we thank the ISIMIP Lake Sector modellers (Sim- strat-UoG: Marjorie Perroud; ALBM: Zeli Tan; LAKE: Victor Stepanenko & Andrey Debolskiy; CLM4.5: Wim Thiery) and the ISIMIP Lake sector coordinators (Gosia Golub, Rafael Marce´, Wim Thiery, Don Pierson, Daniel Mercado-Bettin). We also thank other members of the ISI- MIP Lake Sector who contributed to the simulations. We acknowledge the support of the Inter- Sectoral Impact Model Intercomparison Project (ISIMIP) cross-sectoral science team for their roles in producing, coordinating, and making available the ISIMIP climate scenario data. Author Contributions Conceptualization: Alessandro Filazzola, Mohammad Arshad Imrit, Richard Iestyn Wool-

way, Sapna Sharma. Data curation: Sapna Sharma. Formal analysis: Alessandro Filazzola, Mohammad Arshad Imrit, Andrew Fleck. Funding acquisition: Sapna Sharma. Investigation: Alessandro Filazzola, Richard Iestyn Woolway. Methodology: Alessandro Filazzola, Mohammad Arshad Imrit, Andrew Fleck. Project administration: Richard Iestyn Woolway, Sapna Sharma. Supervision: Sapna Sharma. Validation: Alessandro Filazzola, Richard Iestyn Woolway, Sapna Sharma. Visualization: Alessandro Filazzola. Writing – original draft: Alessandro Filazzola. Writing – review & editing: Mohammad Arshad Imrit, Andrew Fleck, Richard Iestyn Wool- way, Sapna Sharma. References 1. Hori Y, Cheng VYS, Gough WA, Jien JY, Tsuji LJS. Implications of projected climate change on winter road systems in Ontario’s Far North, Canada. Clim Change. 2018; 148: 109–122. https://doi.org/10. 1007/s10584-018-2178-2 PLOS ONE Financial loss of declining lake ice PLOS ONE | https://doi.org/10.1371/journal.pone.0299937 July 5, 2024 11 / 15