This document discusses water scarcity issues and strategies for water conservation. It begins by outlining key learning objectives about water issues facing the Central Texas region and approaches to incorporating water conservation into design. Several takeaways are presented: water is becoming a critical resource, international experience can inform local strategies, and new opportunities exist for owners, designers and contractors. The document then explores reasons for the growing importance of water conservation due to issues like limited freshwater supplies, population growth, climate change and drought. Case studies from areas like Australia and Germany demonstrate successful conservation approaches using tools such as recycling, rainwater harvesting and new regulations.

1. Cool Water: Blue Is The New Green © 2010 Yudelson Associates JERRY YUDELSON • YUDELSON ASSOCIATES • TUCSON, ARIZONA

2. ©2011 Yudelson Associates Learning Objectives Learn about water scarcity issues in Central Texas region, water conservation strategies for buildings, factories, cities and homes Understand how to incorporate water conservation concerns into design process such as rainwater harvesting Review successful approaches to water conservation in Central Texas through local case studies Be able to articulate options for new water re-use and supply technologies, including water efficient technology, retrofits and existing buildings.

3. Key Take-Aways Water is the next big (green) thing International experience and technology can be adapted here Major new opportunities: owners, designers, facility managers, entrepreneurs and contractors ©2011 Yudelson Associates

4. Why Water? Water: 21st Century oil Freshwater supply limited Population/urban growth: large water footprint Global warming hits water Major droughts since 2006 Water efficiency leads to conservation outcomes ©2011 Yudelson Associates

5. Water Is the Oil of the 21st Century Resource conflicts Existing water sources fully allocated Next urban/rural battleground © 2011 Yudelson Associate

6. Water is the Oil of the 21st Century © 2011 Yudelson Associate

7. Freshwater is inherently limited No more water since Adam & Eve Usable freshwater a tiny fraction Much is too polluted to drink Aquifer depletion reduces water supply ©2011 Yudelson Associates

8. Freshwater © 2011 Yudelson Associate

9. Water Footprint © 2011 Yudelson Associate

10. Global Warming Much of world’s summer water supply from snowmelt Changes in climate = smaller snowpack, larger spring runoff, greater flooding, reduced summer stream flows Water pricing for conservation will be huge issue © 2011 Yudelson Associate

11. Water Conservation vs. Water Efficiency © 2011 Yudelson Associate

12. Water/Energy Nexus Hydropower still important Water supply <=> energy use Energy supply <=> water use By 2020s: Not enough water for energy, or energy for water! ©2011 Yudelson Associates Lake Lanier, Atlanta, GA

14. Water Conservation vs. Water Efficiency Conservation means less total use But efficiency does not guarantee conservation Behavioral change is equally important Water conservation: some unintended consequences San Francisco: $14 million for bleach ©2011 Yudelson Associates

15. Australia 20 million people Most live near the coasts Except for tropics, country is quite dry Global warming has moved storm tracks south Biggest drought in 117-year recorded history since 2005 ©2011 Yudelson Associates

16. Australia Coordinated response by national/state governments $13 billion plan ($650 per person) Water restrictions in all urban areas Product innovations WELS rating mandatory for products since 2006 Product innovations come out of labeling ©2011 Yudelson Associates Rainforest in Tasmania, Australia

17. Australia Plumbing industry front and center Large water utilities recycle water, even for domestic use Public cooperation vital Desalination - viable option ©2011 Yudelson Associates Falcon water-free urinals

18. Australia: Lessons Learned In a crisis, everything’s on the table Easier to do big things politically System favors (big) long-term solutions Don’t neglect public participation New technology can be mandated in crisis Exotic solutions can be tried and evaluated © 2011 Yudelson Associate Murray-Darling — Australia’s Largest River

19. Germany 80 million people Leader in adapting to global warming Focus on rainwater harvesting codes New technologies emerging for gray water reuse ©2011 Yudelson Associates Top: Heidelberg, Germany Bottom: Water House, Pforzheim, Germany

20. Pontos AquaCycle Gray Water System © 2011 Yudelson Associate

21. Driving Forces Water shortages/droughts in many states Financial/regulatory incentive programs Green certification programs such as LEED Rising costs for water supply and sewage treatment Stakeholder concerns; political and regulatory changes ©2011 Yudelson Associates

22. Inhibiting Forces Water is still cheap in most areas High-water-use lifestyles still preferred Unintended consequences Agency revenues drop Sewers and drain lines don’t flush Codes hard to change Lack of whole systems thinking ©2011 Yudelson Associates

23. Where Does This Leave Us? A very dynamic future: much opportunity New technologies, systems, approaches New products coming to market constantly Larger questions? What about water for the environment? ©2011 Yudelson Associates

24. Some Opportunities? “Green plumbing” jobs Building fixture retrofits NEWater reuse/recycling systems New specialties Whole systems engineer Using less-than-potable sources © 2011 Yudelson Associate

25. The Future is Green (and Blue), But… If we want to score, we run to where the ball is headed, not to where it is. Ask yourself: how green (and blue) will the built environment be in 2015? What will be the Next Normal? How can I participate in the water revolution? Spain Wins FIFA World Cup 2010 ©2011 Yudelson Associates

26. © 2011 Yudelson Associate Water: Dry Run

27. © 2011 Yudelson Associate

28. Thank you! Subscribe to Jerry’s newsletter: www.greenbuildconsult.com © 2011 Yudelson Associate