1. Climate Science in the Public Interest Climate Change Adaptive Strategies for Ski Resorts: An Idaho Case Study Don Reading Climate Impacts Group University of Washington http://www.cses.washington.edu/cig/

2. Climate Science in the Public Interest Snow Model

3. Climate Science in the Public Interest Adaptive Strategies for three Ski Areas in Idaho that are less than 300 kilometers apart

4. Climate Science in the Public Interest Oldest Destination Ski Resort in U.S. First New Destination Ski Resort in 25 Years ‘Local’ Ski Resort 25 km from population base

5. Climate Science in the Public Interest

8. Ski Season 1 week shorter by 2020 and 3 weeks shorter by 2040 Ski Season 1/2 week shorter by 2020 and 2 weeks shorter by 2040 Ski Season 2 weeks shorter by 2020 and 5 weeks shorter by 2040 Climate Model Projections of Shortened Ski Season

9. Climate Science in the Public Interest

10. Climate Change - Impacts on the Tourism Industry in Mountain Areas Rolf Bürki, Hans Elsasser, Bruno Abegg, 1st International Conference on Climate Change and Tourism, Djerba, 9-11 April 2003

11. Climate Science in the Public Interest Ski areas’ profits or losses are determined by New Years Day Thanksgiving weekend can make or break a season

12. Climate Science in the Public Interest Snow Making 139,322 gallons of water for an acre foot of snow A ‘typical’ run requires 3 acre feet of water for one foot of snow A ’typical’ run requires 55 tanker loads for one foot of snow

13. Climate Science in the Public Interest With humidity at 20% temperature can be as high as 37 o F to make snow The dryer the better -- night time temperatures are critical

14. Climate Science in the Public Interest Capital costs vary between $10,000 and $20,000 per acre to be covered O&M costs can be as much as 25% of total operating costs

15. Climate Science in the Public Interest Water availability is the key factor in an area’s ability to make snow

16. Climate Science in the Public Interest 78% 10% 1% Current Percent of Runs with Snow Making

17. Climate Science in the Public Interest Top Elevation 9,150 feet, better skiers ‘ski to top’ Top Elevation 7,700 feet and is at top of mountain Top Elevation 7,600 feet and is at top of mountain Development of Higher Terrain

18. Climate Science in the Public Interest 2,064 acres; 75 runs; 21 lifts 2,10 acres; 39 runs; 7 lifts 2,600 acres; 52 runs; 7 lifts Ski Slope Design

19. Climate Science in the Public Interest Crossover Ski Passes Coordinate Events/Races Pool Financing Co-ordinate Advertising Co-operation

20. Climate Science in the Public Interest Full Year-Around Resort Tubing Hill, Additional Condos, Yurt Dinner/Hay Ride, Summer Convention Center Alternative to Ski Tourism

21. Climate Science in the Public Interest Ski resorts ability to adapt to climate change can vary significantly even when the resorts are in close proximity to one another and have geographic similarities. In judging economic impacts and the ability of ski resorts to take adaptive measures from climate change cannot be painted with a broad brush. Each areas unique aspects, where they exist, must me examined in detail in order to accurately judge the Impact of climate change. Conclusion

22. Climate Science in the Public Interest Climate Impacts Group University of Washington Center for Science in the Earth System 3737 Brooklyn Ave. NE Seattle, WA 98105 Ph: 206.616.5350 Fax: 206.616.5775 karpov@u.washington.edu Don Reading, Ph.D. 6070 Hill Road Boise, ID 83703 Ph: 208.342.1700 Fax: 208.384.1511 dreading@mindspring.com