Quotes on agriculture

  In Scandanavia, 'Iverson finds that the whole spectrum of pollen deposits is altered when (in early Neolithic times) ... the first farmers appear. Cereal pollens increase. Plants of oak woodland lessen and disappear; birch pollen increases rapidly -- it is one of the trees which can come in after an extensive burn. For the pollen record, the effect of early agriculture is as severe as a shift in climate.  
Russell Lord

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