Category Archives: Phosphorus

Phosphorus is absolutely essential for agriculture, this mineral (and nitrogen) produce 5 times as much food per acre. Without phosphorus and nitrogen, the world could feed 1.5 billion people at most – but probably less since we’ve so damaged the topsoil

Pigeon towers to cope with peak phosphate and natural gas fertilizer?

[ Natural gas based fertilizers intensified crop production per acre up to 5-fold, yet natural gas, like phosphate, is finite.  We are going to be forced to reinvent our fossil-based agriculture, why not start with pigeon towers? Beats going to … Continue reading

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After a collapse will people grow their own food or plunder others?

[ In this post Ugo Bardi looks at what will happen if society collapses and we have to suddenly go back to pre-industrial agriculture conditions.  A back to the land movement where people grow their own food may not happen. … Continue reading

Posted in Agriculture, Peak Food, Phosphorus, Scientists, Soil, Ugo Bardi | Tagged , , | 6 Comments

Doomsday: Will peak phosphate get us before global warming?

Price, Ed.  July 22, 2013. Doomsday: Will Peak Phosphate Get us Before Global Warming? oilprice.com Although climate change catches the headlines, it is not the only doomsday scenario out there. A smaller but no less fervent band of worriers think … Continue reading

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Phosphate: All hopes rest on Morocco with 75% of remaining reserves

[ If you look around for what share Morocco has of phosphate reserves, you’ll see figures of 75 to 85% that will last 300-400 years.  But that may not be correct, as Walan et al point out in this paper. … Continue reading

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Peak Phosphorus

Below is an excerpt from page 176 of Princeton professor Kenneth S. Deffeyes from his book “Beyond Oil, the view from Hubbert’s Peak” (2005): Phosphate (PO4+++) is mined commercially from sedimentary rocks containing the mineral apatite, a form of calcium … Continue reading

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