|   | Reefs at Risk | 
| June 1997 | Table of Contents | Volume 42 | Number 6 | 
 DEPARTMENTS
  DEPARTMENTS
 POLITICAL 
SCENE
Scientific Databases Caught In Copyright 
Web
David Applegate
Gauging the Health of the World's Coral 
Reefs: Monitoring vs. Mapping
 by  Robert N. Ginsburg 
From Southeast Asia to South Florida, coral reefs show signs of decline.
 Growing concern about the health of the world's reefs has mobilized the 
international scientific community. What can geology offer to the global 
effort to assess the state of these ecologically and economically 
valuable resources -- and preserve them for future generations?
Is Ward Valley Safe? A Point/Counterpoint Discussion
by 
Howard Wilshire and John B. Robertson The controversy over Ward 
Valley -- California's proposed disposal site for low-level radioactive 
wastes -- continues. In this "Point/Counterpoint" exchange, Howard 
Wilshire argues that serious technical questions about the site remain. 
John B. Robertson counters that further tests and monitoring while work 
proceeds could resolve these concerns; the real problem is social and 
political opposition.
Paleoflood Hydrology in South Africa
by Peter K. Zawada Estimating the likelihood of floods in 
semi-arid South Africa is no easy task; annual rainfall (and river flow) 
can vary considerably from year to year and flood records are short or 
nonexistent. But studying the physical evidence from past floods can 
help hydrologists predict the probability and potential severity of 
future flooding.
 © 
1997 American Geological Institute. All rights reserved. Anycopying, 
redistribution or retransmission of any of the contents of this service 
without the express written consent of the American Geological 
Institute  is expressly prohibited.
  © 
1997 American Geological Institute. All rights reserved. Anycopying, 
redistribution or retransmission of any of the contents of this service 
without the express written consent of the American Geological 
Institute  is expressly prohibited.