Why Ag is Different » Physical Risk
Physical risk is uniquely difficult to model in agriculture.
Physical risk analysis is an established tool in the built environment for quantifying potential losses and evaluating investments in adaptation and resilience.
Its standard framework of hazard, exposure and vulnerability connects physical threats (such as flood or wildfire) to their economic consequences. It then provides the basis for calculating the ROI of adaptation and resilience interventions.
The framework holds considerable promise for agriculture, but the sector presents distinctive challenges in each component and in the practical capacity to adapt.
H: Hazard
What hits the system
Crop hazards combine with threats to facilities, transport and supporting infrastructure.
Agriculture combines the hazards affecting biological production with those threatening industrial facilities, transport and other infrastructure. Drought, heat and hail can impair crops while floods, storms and wildfire disrupt processing and distribution, giving the sector an exceptionally broad range of physical climate exposures.
E: Exposure
What is financially exposed
Fixed land, continuous exposure. Regional portfolio shocks and financial effects beyond harvest.
Agriculture’s productive base is fixed in place and exposed to the elements, with capital committed through biological cycles that cannot be paused or relocated as conditions deteriorate.
This creates multiple dimensions of financial exposure:
- Correlated portfolio losses: regional hazards can hit multiple holdings simultaneously.
- Farmland devaluation: a lasting shift in growing conditions can impair land values.
- Long-term revenue impacts: damage to orchards, vineyards or breeding herds can reduce revenue for years as productive capacity is rebuilt.
- Working-capital losses: a failed harvest can leave prepaid input costs unrecovered.
- Debt-service pressure: lost income can strain repayment capacity and put loan covenants at risk.
- Forward-contract liabilities: production shortfalls can require replacement purchases where delivery obligations remain.
- Market-access risks: repeated shortfalls can undermine buyer relationships and future sales.
V: Vulnerability
How the system responds
Soil function, supply continuity and facility protections shape losses from the same hazard.
The same hazard can produce very different losses depending on how production, supply networks and facilities withstand and recover from stress. Agricultural vulnerability has three connected dimensions:
- Ecological and soil function: soil structure, water infiltration and retention, and surrounding ecological infrastructure influence whether a field sheds water and erodes, sustains production through drought or recovers after stress. These functions change with management and conditions, and fixed soil classifications cannot describe that changing response.
- Supply chain resilience: storage capacity, alternative suppliers, processing options and transport routes shape whether a local shortfall becomes a prolonged interruption. Their value depends on whether those alternatives remain available under the same regional stress, protecting throughput, sales and access to markets.
- Facility resilience: flood protection, backup power and grid failover, alternative water supplies and equipment redundancy affect whether operations continue when supporting systems fail. A facility can remain physically intact while a power outage disables cooling or processing, creating losses through downtime and spoilage.
Across these dimensions, growers’ and processors’ access to cash and finance affects how long they can sustain operations and how quickly they can recover.