Next-generation soil monitoring transforms agricultural emissions reduction for CPG giants

Emissions from agricultural supply chains present a significant challenge for consumer packaged goods (CPG) companies, particularly in the food and drinks sector. For industry giants like Nestlé and Mondelez International, agricultural ingredients contribute to more than two-thirds of their overall carbon footprints, making reductions at the farm level crucial yet complex to achieve and measure.

Traditionally, these companies have relied on standardised emissions factors to estimate the greenhouse gas footprint of ingredients, converting one kilogram of produce into an associated mass of CO2 based on averaged data. However, this approach fails to reflect improvements made by producers who successfully reduce emissions through better agricultural practices, as supplier-level progress does not update these factors. As a result, companies lack accurate visibility into ongoing emission reductions within their supply chains.

To address this gap, there is a growing push within the industry to incorporate precise, supplier-specific data, such as fuel use, into emissions calculations. This task is relatively straightforward for fossil fuel-related emissions, but biogenic emissions stemming from soil, crop management, and livestock remain much harder to quantify. Companies often depend on estimates and models rather than actual field measurements, which reduces data accuracy and transparency.

Emerging technologies offer a promising path forward. Carbon project developers utilising satellite imagery can monitor farming practices such as crop rotations, cover cropping, and ploughing, factors influencing soil carbon storage, and thus refine farm-level emissions data. Yet, these observations still require contextualisation within local conditions like climate and soil type to determine true emissions.

Direct measurement at the field level represents the next frontier in emissions data quality. Flux towers, sensor-equipped installations measuring greenhouse gas flows above fields, provide highly precise insights into carbon dynamics. For example, research at Buck Island Ranch in Florida demonstrated that grazing cattle can promote carbon sequestration in soil and simultaneously reduce methane emissions by strengthening plant root systems and decreasing microbial decomposition of dead plant material. These findings suggest that improved measurement can unlock more sustainable, nature-based farming solutions that enhance carbon storage rather than relying on additives like methane-reducing feeds, which may face consumer resistance.

Despite the potential, advanced soil monitoring technologies are predominantly limited to research and carbon markets, primarily due to costs. Building flux towers can be costly, the Irish government’s network reportedly costs between €80,000 to €250,000 per tower. However, more affordable and scalable options are emerging. Companies like Eosense offer smaller flux chambers, roughly the size of a beach ball, while startups such as YardStick provide carbon sensors that farmers can embed in soil. Widespread deployment remains impractical and expensive, but strategic installation at selected farms can generate valuable data to improve emissions models across wider supplier networks.

For leading food and drinks companies aiming to fully grasp their carbon footprint and pre-empt stricter environmental regulations, investing in soil carbon monitoring technologies is increasingly critical. This approach enhances transparency, enables more targeted emission reductions at the farm level, and helps safeguard supply chains from regulatory and reputational risks.

In parallel, major players such as Nestlé are pursuing extensive sustainability initiatives throughout their supply chains. Nestlé has committed to achieving net-zero emissions by 2050, driven by operational transformations towards renewable energy and promoting regenerative agriculture among farmers. Their approach includes co-investing in farm projects, rewarding sustainable practices, and providing technical support to ensure a just transition, highlighting the growing importance of collaboration with agricultural suppliers to meet climate goals.

However, challenges persist. Mondelez International has recently called for a delay in the European Union’s Deforestation Regulation, citing difficulties in cocoa production, high prices, and insufficient digital infrastructure which complicate compliance. Similarly, reports have surfaced linking major companies, including Nestlé and Mondelez, to deforestation risks in palm oil supply chains, specifically in Indonesia’s Rawa Singkil Wildlife Reserve. These allegations underscore the ongoing struggle within the industry to fully eradicate deforestation and associated emissions from far-reaching agricultural supply chains.

Moreover, Nestlé’s decision to withdraw from the Dairy Methane Action Alliance, a global coalition targeting methane reductions in dairy, reflects a broader trend of corporations recalibrating climate alliances while reaffirming commitments to net-zero targets through other channels.

Nestlé’s dedication to sustainability is further demonstrated by its partnerships with reforestation initiatives in Brazil, aiming to plant millions of trees and restore agroforestry systems in critical cocoa and coffee sourcing regions. These efforts contribute to offsetting emissions and improving ecosystem health, reinforcing the value of integrating nature-based solutions alongside rigorous emissions measurement and reduction strategies.

In sum, the combination of advanced soil carbon monitoring, strategic partnerships for sustainable agriculture, and responsive corporate policies will be key for food and drinks companies to manage their complex agricultural emissions. Enhanced measurement technologies not only improve emissions data accuracy but also empower more informed decisions to foster sustainability in global supply chains, positioning companies to meet ambitious climate targets and navigate evolving regulatory landscapes.