News Advisory – U.S. Water Shortage Crisis/Climate Change – Report to Show Large Share of U.S. Counties Face Water Shortages, Crop Implications

… July 20, 2010 News Advisory ...

NEW COUNTY-SPECIFIC ANALYSIS TO SHOW SEVERE RISK OF WATER SHORTAGES ACROSS THE U.S. DUE TO CLIMATE CHANGE, INCLUDING WHERE FARMING MOST IN JEOPARDY

Greatest Risks in 14 States: AZ, AR, CA, CO, FL, ID, KS, MI, MT, NE, NV, NM, OK and TX;
County-by-County Analysis to Detail Where Water Shortage Risks Will Be Worst, Crops at Stake.

WASHINGTON, DC, July 16, 2010///Water shortage risks will hit a very large percentage of all U.S. counties by midcentury, according to a major new TetraTech study to be released at 1:30 p.m. EDT/10:30 a.m. PDT on July 20th by Natural Resources Defense Council (NRDC).

The county-by-county analysis looks at how water supplies could be jeopardized in the more than 1,000 counties facing water sustainability problems. The analysis will show a 14-times increase in the number of the most severely threatened U.S counties. The extent of U.S. agriculture at risk will be outlined during the news event.

Fourteen states -- Arizona, Arkansas, California, Colorado, Florida, Idaho, Kansas, Mississippi, Montana, Nebraska, Nevada, New Mexico, Oklahoma, and Texas – will be identified as facing the greatest overall at water-related risks, including limitations on water availability as demand exceeds supply.

News event speakers will be:

* Sujoy Roy, principal engineer and lead author, TetraTech;

* Pete Altman, campaign director, Climate Center, Natural Resources Defense Council; and

* Additional experts (to be announced Monday).

TO PARTICIPATE: You can join this live, phone-based news conference (with full, two-way Q&A) at 1:30 p.m. EDT/10:30 a.m. PDT on July 20, 2010 by dialing 1 (800) 860-2442. Ask for the “Water Shortage Crisis” news event.

CAN’T PARTICIPATE?: A streaming audio replay of the news event will be available on the Web at http://www.nrdc.org. as of 6 p.m. EDT/3 p.m. PDT on July 20, 2010.

CONTACT: Leslie Anderson, (703) 276-3256 or landerson@hastingsgroup.com.

ABOUT NATURAL RESOURCES DEFENSE COUNCIL

The Natural Resources Defense Council is a national nonprofit organization with more than 1.3 million members and online activists. Since 1970, our lawyers, scientists, and other environmental specialists have worked to protect the world’s natural resources, public health, and the environment. NRDC has offices in New York City, Washington, D.C., Los Angeles, San Francisco, Chicago, Livingston, MT, and Beijing. Visit NRDC on the Web at http://www.nrdc.org.

ABOUT TETRA TECH

Tetra Tech, Inc. was founded in 1966 to provide engineering services related to waterways, harbors and coastal areas. Over the past 40 years, the Company has substantially increased the size and scope of its business and expanded its service offerings through a series of strategic acquisitions and internal growth. Tetra Tech now provides environmental services, water/wastewater management, infrastructure services, security design, and outsourced technical services. From the beginning, Tetra Tech has attracted the best and brightest minds in science and engineering, and has always focused on bringing innovative solutions to our clients’ most complex needs. Today, Tetra Tech has approximately 10,000 employees located in more than 280 offices worldwide.