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Incorporated, a worldwide network of science museums and related institutions.
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Please join us for the next NASA Earth-Sun Museum Alliance Science Conversation, Thursday, February 23rd, at 3 p.m. EDT. 
Dr. Jim Collatz, Scientist with NASA's Biospheric Sciences Branch, will share current findings from space, which are helping scientist identify the "missing sink" of anthropogenic carbon dioxide.

Details:
Event:  Earth-Sun  Museum  Alliance (ESMA)  telecom: Wheres the Missing Carbon?
Date:   Thursday,  February  23rd,  2006,  3pm  EDT
Format: telecon  discussion,  Q&A
Access: 888-323-4924  (toll-free  dial-in  number)          
        PASSCODE:  Earth
Audience:       Museum Alliance
Duration:       60  minutes
www site:       http://informal.jpl.nasa.gov/museum/Earth/ 
                To register (first time only) 
                http://informal.jpl.nasa.gov/museum/alliance/
 
Summary:
Earth's Carbon Cycle: Where's the Missing Carbon?
In any given year, tens of billions of tons of carbon move between the atmosphere, hydrosphere, and geosphere. Human activities add about 5.5 billion tons per year of carbon dioxide to the atmosphere. Not all of the carbon dioxide that has been emitted by human activities remains in the atmosphere, some for example, is absorbed by the oceans. However, when scientist try to account for sources and sinks for carbon dioxide in the atmosphere, they uncover some mysteries. Dr. Jim Collatz Scientist with NASA's Biospheric Sciences Branch, will help uncover some of these mysteries, and share what scientist are leaning about the Earth's carbon cycle from earth observing satellites.

Resourses: 
•	Telecon Powerpoint presentation 
•	http://informal.jpl.nasa.gov/museum/Earth/ 
Other Resources: 
•	Resources: 
•	http://earthobservatory.nasa.gov 
•	http://realclimate.org 
•	BOOK: Biogeochemistry: An analysis of global change. WH Schlesinger, AP, 1997 
We hope you can join us.
 
Joel Halvorson - SMM
David Herring - NASA/GSFC
Anita Sohus - NASA/JPL
Maurice Henderson - NASA/GSFC
 
PS. Please feel free to pass this information along to other colleagues
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