Nauru

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The editorial by Philip H. Abelson highlights a potential phosphate crisis looming by 2050, prompted by the depletion of rock phosphate reserves, particularly on Nauru, the self-proclaimed "Phosphate Capital of the World." With phosphate being a non-renewable resource essential for agriculture and food security, this crisis poses serious threats to human survival. The article discusses the implications of nutrient management on ecosystem health, including the bloom of eukaryotic algae in response to nutrient enrichment, and stresses the need for sustainable practices in biofuels and energy security.

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May 17, 2026

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Nauru

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Science Editorial 26 March 1999 “A Potential Phosphate Crisis” Philip H. Abelson Scientist extraordinaire Nauru PEAK P? World USA By 2050 we will run out of “Rock Phosphate”
Nauru: “P Capital” of the World

I  P ! P Biofuels Agriculture Energy security Food security Human survival P is a non-renewable, limiting resource

RESULTS • Add N + P + Si + Fe + vitamins → bloom • No surprises there! • Chl a and c increase, divinyl chl a/b do not • A “diatom” bloom! • Eukaryotic algae outgrow their predators + nutrients control