"Food and population"



Streaming Media


Ecosystems Lectures


1 hour 20 minutes

Original Description

With: Salter, C. L. The urban enigma.


The 2nd of two lectures by Harrison Scott Brown, professor of geochemistry at California Institute of Technology, traces the evolution of the current global food situation and points out how energy use can cause climate changes which can drastically affect the world's food supply. This lecture is part of the "Ecosystems" series of lectures sponsored by Sigma Xi- Earth Resources Ltd.

Transferred and preserved by Portland State University Library’s Special Collections with the generous support of the Institute of Museum and Library Services through the Library Services and Technology Act, administered by the Oregon State Library.


Ecosystems, Population, Food, Climate changes

Original Format

Reel to reel, 3.75 ips, 4 track, mono


This digital access copy is made available as streaming media for personal, educational, and non-commercial use only. It cannot be reproduced in any form, distributed or played for commercial purposes. It is made accessible because of one or more of the following situations: the rights are owned by State Board of Higher Education, on behalf of Portland State University; Portland State University has permission to make it accessible; it is made accessible for education and research purposes under fair use; or there are no known restrictions on use. In the event that previously unknown information is shared that may change the status of this item, it will be immediately removed from public view until pertinent rights issues are clarified.

Persistent Identifier