<html>
<font size=5 color="#008080"><b><u>Earth System Initiative
Seminar<br><br>
</u>Dr. Mick Follows<br>
</font><font size=4 color="#008080">Department of Earth, Atmospheric and
Planetary Sciences, MIT <br><br>
</font><font size=5 color="#000080">"Does Iron Limitation Control
the Oceans Biological Carbon Pumps?"<br><br>
</font><font face="Arial, Helvetica" size=4>Iron is a key micro-nutrient
limiting biological productivity in large areas of the ocean. It has been
hypothesized that changes in the dust-borne transport of iron to the
remote oceans may have led to the large glacial-interglacial changes in
atmospheric CO2 recorded in ice cores. We will discuss this hypothesis
using models of the coupled oceanic cycles of iron, phosphate, oxygen and
carbon and interpretation of large scale ocean surveys.<br><br>
</font><font size=5 color="#FF0000">12 Noon, Monday February 23,
2004<br>
MIT Building 54-915<br>
</font><font color="#FF0000">Lunch will be served<br><br>
</b>Next seminar: Thursday March 18, 2004<br>
10:30am: 56-114<br>
Professor Deborah Estrin, UCLA<br>
</font><font size=2 color="#000080"><b>"Sensing the Environment: The
Challenges of Extensive Sensor Networks"<br>
</b></font><font color="#FF0000">Followed by a lunch reception<br>
</font><x-sigsep><p></x-sigsep>
Matthew Gardner, Ph.D.<br>
Program Administrator<br>
Earth System Initiative, 16-177<br>
Massachusetts Institute of Technology<br>
Cambridge, MA, 02139<br>
617.253.6895<br>
<a href="http://web.mit.edu/esi" eudora="autourl">http://web.mit.edu/esi</a></html>