VOLUME 90   NUMBER 1   6 January 2009

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FEATURE
Recovery of the Ozone Layer: The Ozone Depleting Gas Index
To help assess the degree to which ozone-destroying chemicals are declining in the atmosphere, scientists have created an index derived from atmospheric measurements of chemicals that contain chlorine and bromine at multiple surface sites across the globe.
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By D. J. Hofmann and S. A. Montzka

Online Access to Western North American Igneous Rock Geochemical Data
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By G. Lang Farmer et al.

Helping Scientists Become Effective Partners in Education and Outreach
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By S. L. Laursen and L. K. Smith

GEOPHYSICISTS:
Honors; In Memoriam
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MEETINGS
Global Bio-optical Algorithms for Ocean Color Satellite Applications
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By J. Werdell

Impact Cratering and Its Planetary and Environmental Effects
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By J. Morrow et al.

ABOUT AGU
Gerald J. Wasserburg Awarded 2008 William Bowie Medal
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Citation by S. B. Jacobsen

Special Presentation: Bras Awarded 2007 Robert E. Horton Medal
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By I. Rodriguez-Iturbe

Your Dues
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By F. Spilhaus

BOOK REVIEW
Micrometeorology
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By R. Stull

NEW BOOKS
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MEETING ANNOUNCEMENTS
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