graph_nitrogen_inputs_population.png


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Figure 4.2.10. Nitrogen inputs and population from 1940-2010
Originally uploaded in Integrate:Teaching for Sustainability:InTeGrate Modules:Future of Food:Student Materials.

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Last Modified: 2018-01-03 11:27:57
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Credit: <a href="https://water.usgs.gov/nawqa/headlines/nut_pest/USGS-Trends-Sprague.pdf"... Trends in Nutrients and Pesticides in the Nation's Rivers and Streams</a>
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