Beyond the sacred ritual, the disastrous management of organic waste reveals the extent of structural underdevelopment and a staggering economic loss.

It's an unchanging ritual that plunges the country into fervor. Yet, the day after Tabaski, Senegalese urban centers present the same apocalyptic spectacle: thousands of hides abandoned on the sidewalks, decomposing offal saturating the air with a pestilential stench, and suffocating sewage systems. What the collective conscience treats as a mere passing nuisance is in reality a crime against the environment and an industrial disaster costing billions.

An explosive demographic equation

Senegal today has approximately 19 million inhabitants, over 96% of whom are Muslim. With an average household size of 8 to 9 people, the social fabric comprises just over 2.1 million families. While poverty prevents some families from acquiring livestock, wealthier households more than compensate for this by sacrificing two, three, or even up to seven or more sheep.

Official figures from the Ministry of Livestock confirm this logistical extravaganza: the national demand fluctuates between 800,000 and 1,000,000 head of cattle each year for the festival day alone. In less than 24 hours, a colossal amount of organic matter is extracted, hastily processed, and then discarded. More than 4,000 tons of hides and astronomical volumes of rumen waste accumulate instantly in public spaces.

The Invisible Climate Bomb

To get rid of these cumbersome remains, citizens' strategies range from irresponsible to amateurish. The more conscientious bury the remains underground, shifting the problem without solving it. Others leave the hides exposed or dump the offal directly into the ocean or sewage systems. Decomposing anaerobically—without oxygen—this biomass becomes a veritable greenhouse gas factory.

Each abandoned sheep carries a latent pollution burden. The decomposition of its rumen (the contents of the stomach) and uneaten offal releases between 2 and 4 cubic meters of biogas, composed of nearly 60% pure methane (CH4). It's worth remembering that methane has a global warming potential 25 times greater than that of carbon dioxide (CO2). On the scale of a million sacrifices, this translates to millions of cubic meters of harmful gases saturating the atmosphere of our cities in just a few days, under the indifferent gaze of health authorities.

"Underdevelopment does not lie in the absence of resources, but in the systemic inability to structure their management. Discarding this waste is to discard energy and jobs."

Anaerobic digestion and pyrogasification: confiscated wealth

This critical situation could, however, serve as a springboard for a circular energy revolution. If these wastes were collected industrially and centrally, two proven technologies could transform the crisis into an opportunity:

Anaerobic Digestion: By introducing wet waste and stomach contents into industrial digesters, the methane that would normally escape into the air would be entirely captured. This biogas, once purified, offers a dual benefit: the production of clean electricity for the local grid or its conversion into biomethane for cooking, capable of replacing the butane gas massively imported by the state. Even better, the solid residue of this process, the digestate, stands out as an exceptionally high-quality organic fertilizer, capable of regenerating depleted Sahelian agricultural soils.

Pyrogasification: For drier materials, residual fats and bone structures, this very high temperature heat treatment process (over 700°C) in an oxygen-poor environment generates a highly energetic synthesis gas (syngas) and biochar, a pure carbon amendment ideal for sequestration and agriculture.

The leather goods gold scandal

But the biggest economic disaster remains that of the leather industry. The sheep of Tabaski, from robust and prestigious lines such as the Ladoum, the Peul-peul or the Touabire, possess hides of a fineness and resistance sought after by the global luxury leather goods and glove industries.

A raw hide, collected on time, properly tanned, and salted, represents immediate market value. By abandoning a million hides to rot, Senegal is simply destroying a financial windfall estimated at several billion CFA francs. Instead of supporting a network of modern tanneries, creating thousands of industrial jobs for young people, and generating export revenue, we are choosing to clog our landfills and poison our environment.

A failure of vision on a daily basis

This seasonal laxity is merely a magnifying glass reflecting year-round management failures. Every month, the country's permanent slaughterhouses process millions of animals for everyday consumption without any meaningful ecological response to the issue of effluents, blood residues, and carcasses. Direct discharges into the sea or surrounding groundwater continue to destroy ecosystems with complete impunity.

It's time for a paradigm shift. Tabaski should no longer be synonymous with a major environmental crisis and passive spending. The government, in conjunction with municipalities and private investors, must urgently develop an industrial sector for valorizing livestock by-products. By mandating collection points and providing financial incentives for salting hides, Senegal could transform an urban burden into a pillar of green growth. Development begins where waste ends.

JULES FAYE