observed_changes_frost-free_season..png


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Figure 9.2.1. Observed Changes in the Frost-free Season. The frost-free season length is the period between the last occurrence of 32°F in the spring and the first occurrence of 32°F in the fall. Increases in frost-free season length correspond to similar increases in growing season length.
Originally uploaded in Integrate:Teaching for Sustainability:InTeGrate Modules:Future of Food:Student Materials.

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Uploaded: Jan3 18


Last Modified: 2018-01-03 11:31:35
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Credit: <a href="http://nca2014.globalchange.gov/">National Climate Assessment, 2014</a>.
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