Tuesday, October 6, 2020

The secret history of dirt

This is a bit environmentalist but interesting nevertheless.  


It would be reasonable to assume that farmers have some training in how to take care of their soil as well as some incentive to do so.  Otherwise, they would be getting lower yields every year.  It is possible that they rely heavily on chemical fertilizers, which is mostly just nitrogen, instead of natural ones.  Chemical fertilizers are derived from fossil fuels, which are a finite resource.

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