Monday, July 20, 2009

The IMPACT OF Geosequestration on WATER SUPPLIES

April 17, 2009

America's Climate Choices
The National Academies
500 5th St. NW, W603
Washington, DC 20001

RE: Summary of Submission to the Panel on Limiting the Magnitude of Future
Climate Change

Dear Committee Members:

The American Water Works Association (AWWA), the Association of Metropolitan
Water Agencies (AMWA) and the Water Research Foundation (Foundation) are
submitting these joint comments to the America's Climate Choices Panel on Limiting the
Magnitude of Future Climate Change. AMWA and AWWA together represent drinking
water utilities of all sizes that serve more than 90% of the U.S. population. The
Foundation sponsors research to enable water utilities to provide safe and affordable
drinking water to consumers. In 2008 the Foundation established the Climate Change
Strategic Initiative – a research program focused on impacts of climate change on water

AWWA, AMWA and the Foundation are very concerned with the effects of climate
change on water resources as many of the most critical impacts of global climate
change will manifest themselves through the hydrologic system. Because the exact
effects of climate change on water resources are uncertain and will vary by region, the
drinking water, wastewater, flood management, and stormwater utilities responsible for
managing water resources for local communities face daunting challenges. These
water utilities are already preparing to mitigate, adapt and plan for climate change in the
midst of the uncertainties about the potential ranges of climate change impacts.

This joint letter summarizes the three documents we are submitting for consideration
during the study process. The documents include:
 Comments on the Sub-Questions: We have reviewed the final four key
questions to be addressed by the Committee and provided responses to each.
The responses include suggested short and long-term actions and technological
advances that can help the water sector address its needs related to the impacts
of climate change on water resources. We submit these suggestions for the
Committee to consider as recommended future actions.

The Authoritative Resource on Safe WaterSM
 Water Embodied in Bioethanol in the United States: This article, which was
recently published in Environment Science and Technology, addresses the
continually increasing amount of water used during the production of bioethanol
in the United States. The energy sector and the water sector are becoming more
and more interdependent, and the implementation of new climate change
mitigation technologies could have significant impacts on the availability of our
water resources. We submit this article for consideration during the discussion of
limiting the magnitude of climate change.

 Comments developed for EPA on Geologic Carbon Sequestration: In 2008,
AWWA and AMWA developed comments on the Environmental Protection
Agency’s proposed rule on geologic carbon sequestration injection under the
Underground Injection Control Program. These comments are submitted for
consideration because they provide more detail on our specific concerns
regarding the use of carbon sequestration as a large-scale greenhouse gas
mitigation technology.

AWWA, AMWA and the Foundation are also submitting detailed joint comments to each
of the other three panels within the America's Climate Choices Study and to the
Committee on America’s Climate Choices.

Diane VanDe Hei Tom Curtis
Executive Director, AMWA Deputy Executive Director, AWWA
Robert C. Renner
Executive Director, Water Research Foundation

Read the full article with attachments here