1 / 18

A Prediction

A Prediction. “New”water will come from better use and efficiency of current sources of water and from conservation. Paradigms of Water Management. Supply side management Treats water as a limitless resource i.e.:secure sufficient water to meet forecasts

Télécharger la présentation

A Prediction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. A Prediction • “New”water will come from better use and efficiency of current sources of water and from conservation

  2. Paradigms of Water Management • Supply side management • Treats water as a limitless resource i.e.:secure sufficient water to meet forecasts • Promotes large,centralized water infrastructure • Often assumes demand is insensitive to policy and behavioral change -rarely considers full economic and environmental costs

  3. Paradigms of Water Management • Demand side management • Influencing demand is more cost-effective than increasing supply • More comprehensive view of economic and environmental costs • Greater focus on economic and socio-political measures

  4. Paradigms of Water Management • Standard approaches to DSM increases efficiency but rarely considers the ecological context • Ultimately, sustainable production depends on sustainable consumption,which entails structural changes and is the fundamental goal of the soft path

  5. A Continuum of Water Management Source: POLIS Project on Ecological Governance

  6. The Soft Path to Water – Core Principles • Treat water as a service (e.g. sanitation,pleasant landscapes,agriculture) rather than an end in itself • Match quality supplied to quality required by end use (less than 1/3 of current water use requires drinking quality water) Xeriscaping Source: www.oxnardwater.org/.../ community/xeriscape.asp

  7. The Soft Path to Water – Core Principles • Make ecological sustainability a fundamental criterion Waitangi River Bank, New Zealand Source: http://pinker.wjh.harvard.edu/photos/new_zealand_II

  8. The Soft Path to Water – Core Principles • Strives for sustainability by increasing productivity Self-contained composting toilet Source: www.survivalunlimited.com/ toilet.htm

  9. The Soft Path Starts with a Vision… • To reduce water consumption by XX% and that leads to a water conservation revolution across all sectors • The town of Oliver, BC Canada • Reduced water consumption by 50% • All “new”water comes from conservation • Aquifers protected • Local & provincial governments support new water management plan

  10. Backcasting: Connecting the Future to the Present • Define sustainable future scenario(s) • First meet basic human and ecosystem needs for water • Distribute remaining resource efficiently • Work backwards to link present to desired future • Maximize productivity for economic development and other social needs

  11. Backcasting: Connecting the Future to the Present • No new water sources developed before 2050 • All future water needs met by efficiency and conservation • Strategic thinking on the right policies and programs • Long term thinking – difficult to do • Climate change

  12. Soft Path Options Source: POLIS Project on Ecological Governance

  13. Soft Path Options Source: POLIS Project on Ecological Governance

  14. Soft Path Options Source: POLIS Project on Ecological Governance

  15. Final Thought… “As we peer into the twenty-first century,water conservation is looking far more like an imperative than an option.” A.Vickers (2001) Handbook of Water Use and Conservation

More Related