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Guano's historical role in US empire-building mirrors modern fertilizer supply chain concerns

The strategic importance of fertilizer access is highlighted by recent disruptions in its global supply chain, reminiscent of historical dependencies on vital resources. Historically, seabird guano served as a critical fertilizer commodity, transforming agriculture and enabling the United States to expand its overseas territories through the Guano Islands Act. This historical reliance on guano underscores the enduring geopolitical significance of agricultural nutrients, a lesson relevant even in the face of modern synthetic fertilizer challenges. AI

RANK_REASON The item is an opinion piece by an environmental historian discussing the historical significance of fertilizer and drawing parallels to current geopolitical events.

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Guano's historical role in US empire-building mirrors modern fertilizer supply chain concerns

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The item is an opinion piece by an environmental historian discussing the historical significance of fertilizer and drawing parallels to current geopolitical events.
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COVERAGE [1]

  1. Fortune TIER_1 English(EN) · Edward D. Melillo, The Conversation ·

    The Strait of Hormuz isn’t fertilizer’s first starring role — and 1856 law still defines U.S. overseas territory

    When governments began to treat guano as a strategic resource, Congress responded with the Guano Islands Act of 1856.