More bytes per acre: do vertical farming’s land sparing promises stand on solid ground?

Mark Bomford ()
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Mark Bomford: Yale University

Agriculture and Human Values, 2023, vol. 40, issue 3, No 7, 879-895

Abstract: Abstract Vertical farming is a rapidly expanding type of indoor controlled environment agriculture whose promises have attracted widespread praise and considerable early-stage capital in recent years. Among vertical farming’s many claimed benefits, per-area productivity is frequently mentioned, proposing crop yields at least two orders of magnitude higher than outdoor field agriculture. These extremely high yields form the basis for a theory of land use change whereby yield-increasing technologies reduce or reverse the expansionary demands of lower-yielding farms, retaining or returning those areas to “wild nature”. In a sensational articulation of this kind of intensification, from 2007 to 2017 many vivid proposals portrayed centrally located skyscraper farms as a key strategy for building self-sufficient cities. This skyscraper articulation of vertical farming captured the public imagination and led to substantial investment into contemporary vertical farming facilities, the majority of which are in large suburban high-ceiling single-story warehouses. This paper traces the politics of vertical farming’s land-sparing narratives beginning early in the twentieth century, with a closer analysis of two contrasting historical examples: Othmar Ruthner’s 1960s tower greenhouses, which closely resemble the imaginary skyscraper farms of the 2010s; and Noel Davis’ 1980s PhytoFarms, which more closely resembles the well-funded warehouse vertical farms of the 2020s. This analysis suggests that, despite their high yields, the extremely high capital investments needed to build the precise controlled environments of today’s vertical farms preclude the profitable production of staple crops, rendering them unlikely to fulfil their land-sparing promises.

Keywords: Vertical farming; Controlled environment agriculture (CEA); Indoor farming; Land sparing; Land use change (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s10460-023-10472-0

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