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Climate Change Impacts on Water Management in the Puget Sound Region, Washington, USA

2009

This report presents historical observations and reliability analyses for planning by water utilities in the Puget Sound basin cities of Everett, Seattle, and Tacoma. By comparing changes in streamflow and snowpack and forecasting hydrological changes, this paper reviews the potential of the region's water supply systems to meet future demands. Each of the three water supply systems were analyzed, and water management models for each city are described. The models are then used to explore - without adaptations - the climate resiliency of the three systems over the next century, and the projected changes in water demand.

Authors or Affiliated Users: Julie A. Vano, Nathalie Voisin, Lan Cuo, Alan F. Hamlet, Marketa McGuire Elsner, Richard N. Palmer, Austin Polebitski, Dennis P. Lettenmaier

Resource Category: Assessments

 

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Adapting California's Water Management to Climate Change

November 2008

This report outlines concerns for climate change impacts as they will effect California with possible sea level rise, shifting mountain runoff from Spring to Winter, changes in precipitation and runoff volume, drought, high stream and reservoir temperatures, increased water demands, and increased flood flows and frequencies. Options and costs for adaptations to climate change are outlined for water supply, flood management, hydro-power, and water quality. Institutional capacities and constraints to adaptation in water supply management, flood management, and water quality management are described and addressed with methods to improve adaptation capacities.

Authors or Affiliated Users: Ellen Hanak, Jay Lund

Resource Category: Solutions

 

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Managing an Uncertain Future: Climate Change Adaptation Strategies for California's Water

October 2008

This report recommends a series of adaptation strategies for state and local water managers to improve their capacity to handle climatic changes. The 10 climate change adaptation strategies for California's water outlined in this report fall under four major categories: investment strategies, regional strategies, statewide strategies, and improving management and decision-making capacity. The report also includes helpful tools for policy makers like a model water-efficient landscape ordinance.

Resource Category: Solutions

 

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Climate Change and the Chesapeake Bay: State-of-the-Science Review and Recommendations

September 2008

This report from the Chesapeake Bay Program Science and Technical Advisory Committee (STAC) addresses the current understanding of climate change impacts on the tidal Chesapeake Bay, and identifies critical knowledge gaps and research priorities. It is intended to provide the basis for incorporating climate change considerations into resource management decisions.

Authors or Affiliated Users: Christopher R. Pyke, Raymond Najjar, Mary Beth Adams, Denise Breitburg, Carl Hershner, Robert Howarth, Michael Kemp, Margaret Mulholland, Michael Paolisso, David Secor, Kevin Sellner, Denice Wardrop, Robert Wood

Resource Category: Assessments

 

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2008 National Water Program Strategy: Response to Climate Change

September 2008

Developed by the Environmental Protection Agency (EPA), this national strategy describes over 40 specific actions the National Water Program intends to take to adapt program implementation to regard climate change. Goals for the Program are outlined in five areas: greenhouse gas mitigation, climate change adaptation, climate change research related to water, water program education, and water program management. Each of these five goals is supported by a series of objectives and actions that the National Water Program will implement in cooperation with partners.

Resource Category: Planning

 

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Green Infrastructure Approaches to Managing Wet Weather with Clean Water State Revolving Funds

July 2008

This fact sheet provides local governments and stormwater utilities with information on how to use the Clean Water State Revolving Fund (CWSRF) to finance green infrastructure projects. After a quick primer on green infrastructure and the CWSRF, the fact sheet details why the CWSRF is an attractive financing option for green infrastructure and which green infrastructure projects are eligible for CWSRF assistance, and provides case studies of how communities have used the CWSRF to finance green infrastructure projects.

Resource Category: Funding

 

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Water Needs and Strategies for a Sustainable Future: Next Steps

June 2008

This report, along with the 2006 report, "Water Needs and Strategies for a Sustainable Future," and the 2010 report, "Water Needs and Strategies for a Sustainable Future: 2010 Progress Report," include consensus recommendations for how the Western states can work with federal, local, and private sector partners to address the challenges of over-appropriated watersheds, population growth, land use changes, water needs for in-stream uses, and of water supply and water management strategies in general.

Resource Category: Planning

 

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City of New York Climate Change Assessment and Action Plan (NYC Department of Environmental Protection)

May 2008

This report summarizes analysis and actions that address New York City's drinking water delivery, storm water management, and waste water treatment systems. It presents the steps that the NYC Department of Environmental Protection (DEP) has taken over the last four years (2004-2008) to address climate change, including efforts to assess the impacts of climate change on NYC's water systems, and identifies opportunities for meaningful changes to water management. The report includes the findings and recommendations to date of DEP's Climate Change Program and Task Force and the immediate actions that the DEP has committed to undertaking to manage climate impacts.

Resource Category: Planning

 

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Climate Change Effects on Stream and River Biological Indicators: A Preliminary Analysis (Final Report)

March 2008

The Clean Water Act mandates that states assess the biological, chemical, and physical condition of their aquatic resources using biological indicators that compare reference and non-reference sites to measure condition. The Office of Water developed guidance documents for establishing biocriteria in rivers and streams, lakes, estuaries, and wetlands, and is developing biocriteria for coral reefs. Climate change is projected to affect aquatic ecosystems through changes in water temperature, hydrological cycles, and degree days.

Resource Category: Monitoring and Reporting

 

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Stationarity is Dead: Whither Water Management?

February 1, 2008

Published in the journal 'Science,' this article argues that the current concept of stationarity - the idea that natural systems fluctuate within an unchanging envelope of variability - is made obsolete in water management practices by anthropogenic climate change. The article recommends that the analytic strategies used for planning future investments be updated.

Authors or Affiliated Users: P. C. D. Milly, Julio Betancourt, Malin Falkenmark, Robert M. Hirsch, Zbigniew W. Kundzewicz, Dennis P. Lettenmaier, Ronald J. Stouffer

Resource Category: Planning

 

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