Geotimes - August 2007 - Print Table of Contents

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August 2007
vol. 52, no. 8

FEATURES

24 Restoring the River
Hurricane Katrina brought the Mississippi Delta's deterioration into the public eye. Now researchers and policymakers are deciding how to restore the system. One answer seems clear: Return the delta region to a more natural ecosystem.
Megan Sever

30 Salton Sea at a Crossroads
A century ago, California's Salton Sea did not exist. A massive flood formed the sea, which 40 years ago was teeming with life. Today, the Salton Sea has come to a crossroads, its future clouded by the certainty of diminishing inflows, the impact of climate change and the challenges posed by its tremendous scale.
Michael Cohen

36 Urban Wetland Restoration: Creating Room to Grow
Before humans recognized the importance of wetlands, they were indiscriminately destroyed. Today, thanks in part to new urban restoration efforts, urban wetlands are again serving as refuges in our cities.
Jenny Buening, Kathleen Hurley, Mike Johns

NEWS NOTES

8 NEWS
DNA holds clues to extinction * Dino pose discloses cause of death * Fill 'er up…with sugar? * Sandbar led Alexander the Great to victory * Climate kick-started agriculture * Climate change will cost us * No more "snows of Kilimanjaro"? * Earth's core is solid, after all * Genetic discovery yields stronger plants * More on Mars

17 GEOPHENOMENA
Foam hushes volcano’s fury
Landslide partially buries Valley of Geysers

19 ENERGY & RESOURCES
Tunnel vision revived
Turning the tide on renewable energy
Mineral Resource of the Month: Silver

VIEWS

7 A COMMENT ON...
Say hello to your PIO
If you don’t know what a PIO is, or don’t know who yours is, it might be worth your while to get to know him or her. PIOs are science writers, trained to take science jargon and make it readable. They are a scientist’s friend.
Harvey Leifert

60 GEOLOGIC COLUMN
The “Roof of the World” is Leaking
Tibet faces its share of challenges, as the author realized during a recent trip to the area.
Fred Schwab

DEPARTMENTS

4 FROM THE EDITOR
6 LETTERS: Perspectives from readers
21 WHERE ON EARTH?

40 TRENDS & INNOVATIONS
Look What I Found!
If you find something on your land — say a whole lot of a valuable building stone, a meteorite or a dinosaur bone— do you know what to do? Do you know who to contact to find out what it’s worth?
Cassandra Willyard

42 GEOMEDIA
Books: Crafting Water Policy in the Great Lakes Basin: The Great Lakes Water Wars
Books: Hit the Road on a Geo-Vacation: A Summer Reading Lineup
On the Web: The Energy Debate: Climate vs. Energy Security

48 GEOMARKETPLACE
49 CLASSIFIEDS: Career opportunities

58 DOWN TO EARTH WITH...
Science bloggers Gavin Schmidt and Michael Mann

59 GEOLOGIC HISTORY
August 16, 1896: Discovery of gold spurs Klondike Gold Rush

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