| 000 -LEADER |
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| fixed length control field |
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| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| 245 ## - TITLE STATEMENT |
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| Title |
Snowball Earth |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
Over 650 million years ago, our entire planet existed in a frozen state. So speculates the hypothesis known as Snowball Earth. The mounting evidence of this controversial phenomenon is explored in great depth in the second episode of Catastrophe... |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| General subdivision |
Science. |
| 856 ## - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
http://topdocumentaryfilms.com/snowball-earth/ |