The National Institute of Health introduces the element phosphorus as such: “Phosphorus, an essential mineral, is naturally present in many foods and available as a dietary supplement. Phosphorus is a component of bones, teeth, DNA, and RNA. In the form of phospholipids, phosphorus is also a component of cell membrane structure and of the body’s key energy source, adenosine triphosphate (ATP).”

This article assesses the chemical phosphorus, its fundamental role in maintaining biosphere integrity, and its subsequent depletion amid the rapidly expanding global population.

Liebig’s Law of Minimum is utilised to understand the importance and gravity of the depletion of the phosphorus resource. The concentration and availability of this Critical Raw Material (CRM) in Morocco and the occupied Western Sahara region are observed to analyse how geopolitical monopoly exacerbates this biological bottleneck.

The Law of the Minimum and the Broken Cycle

Liebig’s Law Of Minimum states that plant growth is limited not by the total amount of resources available but the scarcest limiting factor. Liebig compared this to a barrel. The barrel was made of staves of different length. The highest water level that the barrel is able to hold is limited to the height of the shortest stave that makes the barrel. Here the water level directly correlates to the maximum achievable crop yield.

In modern intensive farming the shortest stave for nutrients is phosphorus. Phosphorus is significantly scarcer than other nutrients (Unlike Nitrogen, which is atmospherically abundant and synthetically fixed via the Haber-Bosch process, Phosphorus is a finite geological resource). The amount of the phosphorus is also reducing because of the break of the cycle.

For thousands of years people lived near farm lands meaning agriculture was a closed loop. Humans and animals ate the crops. The night soil and manure ended up back in the fields causing a reuse of the phosphorus. Cordell et al. (2009) rightly observed that the trade in food grew steadily with urbanization and colonization but insufficient amounts of nutrients actually re-entered the fields. This caused a leakage of phosphorus from the soils and fields directly into the sewage and the ocean. Green revolution necessitated a massive intensification of phosphorus based fertilizers. As per the article today’s food level will not be met without the use of the processed mineral fertilizers.

The Phosphorus Monopoly and the Silent Controller

As per the Mineral Commodities Survey done by the U.S. Geological Survey (2026) out of 73 billion tonnes of phosphorus present in currently 50 billion tonnes are just from Morocco, thats 68.49% of the total phosphorus reserves currently present. While OPEC controls ~79% of oil reserves, this power is diluted across 12 member states. In contrast, Morocco’s~70% share is consolidated under a single state-owned entity (OCP), creating a monopoly tighter than the oil cartel’s. Unlike the oil that OPEC produces, which are in the process of being substituted by more eco friendly variations, phosphate rocks (Phosphorus)  has no substitute as per the same Survey.

Over the past year on comparison of the Minerals Commodities Survey done for 2025 and 2026 shows a 1million ton reduction in the total global reserve of phosphorous while the Moroccan Phosphorus is remains largely unexploited. Along with this China’s National Developement and Reform Commission (NDRC) pushed forward a directive that delays shipment of the Phosphorus based resources by implementing a very strict Inspection and Quarantine(CIQ). This means that China virtually banned export of all phosphorus related resources. This move was done to give more focus on the domestic market of China and its Spring Ploughing sessions.

Major consequences of this came when EU and India started suffering from the lack of phosphorus. Pre-CIQ India bought nearly 0.84 million tonne of Diammonium Phosphate from China, but post CIQ since China starved India of the supply, the levels sank to nearly zero. This meant that India had to buy DAP at higher price than before, the subsidies offered for these phosphorus based fertilizers shot up increasingly high. Meanwhile Europe because of its limit on Cadmium presence in Phosphate products had to buy “Low Cadmium Products” from Morroco at a premium.

Previously, Phoshphorus was imported from Russia, since Russian rock was igneous in nature it was low cadmium and clean resource, but the Morrocan rock is sedimentary and geologically impure in nature, and has higher cadmium amounts. With Russian sanctions now in place, Europe is forced to purchase treated ‘low-cadmium’ Moroccan phosphate.

The Edge and The Fall?

As per the United Nations Department of Economic and Social Affairs (UN DESA). The population of the world is projected to reach upto 9.7 to 9.8 billion humans by 2050. The Food and Agriculture Organisation of the United Nations (FAO) translated this data into the fact that there should be 50% to 60% increase in the agricultural production. Since most of the arable land in the world is currently used this increase should be matched by increasing the efficiency of the current land. The efficiency is increased by high intensity farming techniques which involves the usage of phosphorus as fertilizers. 

Hubbert Peak theory posits that for any finite resource, production follows a bell-shaped curve that eventually peaks and irreversibly declines. Certain studies such as Cordell et al and Gunther, 2005 predict that the phosphorus can peak or be exhausted by around the next 50 – 100 years. This is effectively going to mean that a resource that is fundamental to the existence of living beings are being depleted at level much faster than its recovery rate.

The Global Phosphate Research Intiative (GRPI) suggested a regulatory measure of Urban Mining comprising recovery of phosphorus and limiting the discharge of the sewage waste into sensitive waterbodies.  Some methods of recovery of phosphate from the sewage include the Struvite Preciption, which extracts magnesium ammonium phosphate (a high quality fertilizer), Sewage Sludge Ash which has an 86% extraction rate of phosphorus from sewage wastes and the Thermal treatment.

GPRI states that recovery of the loss of phosphorus through night soil and manure can meet upto 20% of the requirements for phosphorus. Studies showcase that this can expand the availability of phosphorus for upto 300 years.

Ultimately, the transition from ‘Mining Rock’ to ‘Urban Mining’ is no longer just an environmental aspiration; it is a geopolitical imperative. For nations like India and the EU, which lack domestic reserves, investing in phosphorus recovery is the only path to decoupling their food security from the monopolistic supply chains of Morocco and the export restrictions of China.

In the 21st century, Phosphorus Sovereignty is synonymous with national sovereignty.