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  • Garden Mosaics projects promote science education while connecting young and old people as they work together in local gardens.
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Ehrlich, Paul R.

Net Primary Production: Original Calculations

Publication Date:

February 13, 1987


Describes the calculations that underlie calculations of the amount of terrestrial and global net primary productivity appropriated by humans; see document #376 and #559 in the rachel Library....


Net Primary Production: Original Calculations, (PDF, 275 KB)

Human Appropriation of the Products of Photosynthesis

Publication Date:

June 1, 1986


Calculates that humans are appropriating (in 1986) 40% of terrestrial net primary productivity, and 25% of global net primary productivity....
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