Hunting and Gathering to Circular-Regenerative: Reimagining the Future of Food Systems

From Hunting and Gathering to Circular Systems

Food is central to human existence, and our methods of feeding a growing population have evolved dramatically over time. Humanity’s relationship with the land has shifted across millennia — from hunting and gathering, to industrialized monocultures, and now toward regenerative and circular systems. Each era brought innovation, but none were without limitations.

Key Stages in Food System Evolution

The progression of agricultural practices from traditional methods like hunting and gathering to advanced techniques such as circular-regenerative agriculture.

• Hunting & Gathering – The earliest human food system, based on collecting wild plants and hunting animals without domestication.

• Pastoralism / Nomadic Herding – Raising and moving livestock to follow seasonal pastures, common in arid and semi-arid regions.

• Slash-and-Burn / Shifting Cultivation – Clearing and burning forests for temporary crop cultivation, then leaving land fallow to restore fertility.

• Early Irrigated / Floodplain Agriculture – Settled farming near rivers (e.g., Nile, Indus) using flooding or primitive irrigation to grow staples.

• Subsistence / Traditional Smallholder – Farming mainly for household consumption, with diverse crops and traditional practices.

• Industrial / Mechanized Agriculture – Large-scale, technology-driven farming reliant on machinery, synthetic fertilizers, pesticides, and monocropping.

• Organic Agriculture – Avoids synthetic inputs, emphasizing soil health, biodiversity, and ecological balance.

• Agroecology – Integrates ecological science and social values, promoting sustainability, biodiversity, and equity.

• Regenerative Agriculture – Restores soil health, increases biodiversity, and strengthens ecosystem resilience through practices like cover cropping and composting.

• Circular-Regenerative Agriculture – Combines regenerative practices with circular economy principles — recycling nutrients, minimizing waste, and integrating renewable energy to close resource loops.

Regenerative vs. Circular-Regenerative Agriculture

Regenerative Agriculture is “a system of farming principles and practices that increases biodiversity, enriches soils, improves watersheds, and enhances ecosystem services.” It is nature-centered and soil-driven, focusing on ecological restoration and resilience.

Circular-Regenerative Agriculture goes further: “an integrated approach that couples ecological regeneration with circular resource flows — minimizing waste, recycling biomass, and designing agricultural systems that continuously renew both natural and human capital.” It expands the regenerative lens beyond the farm, linking farmers, industries, and communities in a closed-loop food system where outputs from one process become inputs for another.

Limitations of Regenerative Agriculture

A recent study in Nature by Schreefel et al. (2025) found that the number of new regenerative farmers in Europe has declined since 2021, partly due to concerns that multinational companies shifted regenerative agriculture from farming to marketing, with little policy engagement to achieve meaningful results. Key challenges include:

• Systems still operate linearly, with leakages and waste that raise production costs, reduce profitability, and harm the environment.

• Companies often emphasize emissions or practices with minimal measurable outcomes, falling short of sustainability targets.

• Current approaches narrowly focus on emissions reduction, overlooking farmers’ broader contributions.

• Dependencies across the food system — from production to consumption and waste management — are often ignored.

• The complexity of interactions at different levels (farm, community, regional, national, global) is not fully appreciated.

Why Circular-Regenerative Agriculture Matters

Circular-Regenerative Agriculture (CRA) is a holistic model that unites regenerative farming with circular economy principles. It applies recycling and regeneration to managing natural resources effectively, mimicking the natural carbon cycle. CRA offers benefits such as:

• Reconnecting producers, supply chains, and consumers through shared resource flows.

• Diverting waste from landfills into value via composting, biogas, animal feed, and circular value chains.

• Building economic resilience by reducing external dependencies.

• Aligning climate goals with soil- and community-based solutions.

• Driving progress toward net-zero through:

• ​biobased materials

  • renewable energy

  • carbon sequestration

  • ​nutrient, water, and energy recycling

  • ​enhanced biodiversity

  • ​improved watershed health

  • ​stronger community resilience

Implementing and Measuring CRA

Circular-regenerative agriculture is complex, involving boundaries, stakeholders, inputs, and outputs that vary in efficiency. Without structured models and measurement tools, implementation can be challenging.

Since 2022, the Circular Planet Institute has developed an operational CRA framework — Mpanga’s Circular Agriculture Implementation Model — introduced in the book Circular Agriculture as a Climate-smart Tool for Circular Economies. This five-level model classifies farms by their degree of circularity, based on biomass inflows and outflows, efficiencies, and complexities.

To support planning and continuous improvement, CPI also created the Circular Agriculture Platform (CAP), an AI-embedded tool launching in January 2026. CAP functions as both a planner and calculator, measuring implementation levels, generating scorecards, and assessing environmental and community impacts. It provides tailored recommendations, making it a valuable climate-smart tool for farmers, sustainability leaders, researchers, NGOs, and consultants.

Expected Challenges to CRA

This includes financing, acceptance by industry, more research and development, limited policy instruments, and how businesses could pay farmers adoption.

The Future of Food Systems

The future of food is neither linear — with rising input costs and waste — nor limited to regenerative agriculture, which risks becoming more branding than practice. Instead, Circular-Regenerative Agriculture represents the path forward:

• Resources are used efficiently through circularity.

• Ecosystems are restored and regenerated.

• Farmers and communities build resilience through self-reliance and reduced dependence on synthetic inputs.

The launch of the Global Circularity Protocol (GCP) v1.0 on November 11, 2025, at COP30 provides timely guidance for harmonizing measurement and reporting of circularity outcomes. Tools like CAP, aligned with GCP and CTI, will help growers, advisors, NGOs, and sustainability leaders continuously adapt and improve.