Sustainability, Ethics and Governance

Introduction

Cold chains preserve food, pharmaceuticals, vaccines, and other temperature-sensitive products, but they also consume substantial energy, depend on refrigerants, generate packaging waste, and distribute benefits and risks unevenly. A technically efficient cold chain is not necessarily sustainable: it may reduce electricity use while transferring environmental burdens to refrigerant leakage, labor, communities, or future waste streams. Sustainability therefore requires simultaneous attention to environmental performance, economic viability, social justice, product integrity, and accountable governance.

For supply-chain managers, the central task is not simply to minimize cost or carbon emissions. It is to design and govern a system that maintains product quality and safety while reducing life-cycle impacts and protecting the rights and interests of workers, consumers, suppliers, and affected communities.

Learning Objectives

By the end of this chapter, students should be able to:

1. Explain the environmental, social, and governance dimensions of cold-chain sustainability.
2. Measure energy use, greenhouse-gas emissions, refrigerant impacts, food loss, and packaging waste using life-cycle and carbon-accounting principles.
3. Distinguish operational efficiency from wider sustainability performance.
4. Evaluate equitable access, labor conditions, product diversion, falsification, and responsible data use.
5. Design governance controls, performance indicators, and accountability mechanisms for perishable-product networks.
6. Critically assess trade-offs and recommend improvements in a realistic cold-chain setting.

1. Sustainability as a Cold-Chain Design Problem

A cold chain is a socio-technical system comprising production, pre-cooling, refrigerated storage, transport, distribution, retail, consumption, and end-of-life activities. Its sustainability performance emerges from interactions across these stages. For example, slower transport may reduce fuel use but increase product deterioration; heavier insulation may reduce operating energy but increase material use; single-use packaging may improve hygiene while increasing waste.

The widely used triple-bottom-line perspective evaluates three dimensions:

• Environmental sustainability: energy, emissions, refrigerants, water, land, waste, and biodiversity.
• Social sustainability: worker safety, wages, discrimination, community impacts, food access, and human rights.
• Economic sustainability: financial resilience, affordability, service reliability, and long-term asset viability.

Governance connects these dimensions. It determines who sets standards, who owns data, who bears risk, how non-compliance is detected, and whether affected parties can obtain remedy.

A useful managerial distinction is between absolute impacts and impact intensity. Absolute emissions may rise when a company expands, even if emissions per pallet fall. Conversely, intensity may improve while total environmental pressure worsens. Both measures should therefore be reported.

2. Life-Cycle Thinking and System Boundaries

Life-cycle thinking evaluates impacts from raw-material extraction through production, use, recovery, and disposal. In cold logistics, a life-cycle assessment (LCA) may include:

1. manufacture of refrigeration equipment and vehicles;
2. production and distribution of electricity or fuel;
3. refrigerant manufacture, charging, leakage, recovery, and disposal;
4. operation of warehouses, transport, and retail equipment;
5. production, reuse, recycling, or disposal of packaging;
6. product loss and the embedded impacts of wasted food; and
7. end-of-life treatment of equipment and materials.

The boundary must be stated explicitly. A cradle-to-gate study ends when the product leaves production. A cradle-to-consumer study includes distribution to the consumer. A cradle-to-grave study includes disposal. A well-to-wheel boundary focuses on fuel and vehicle energy from extraction to use, while a tank-to-wheel boundary considers only energy consumed by the vehicle.

The functional unit is the reference against which impacts are compared. Examples include 1 tonne-kilometre of chilled product delivered, 1 pallet delivered within specification, or 1 kilogram of edible food reaching the consumer. The functional unit must reflect service delivered, not merely activity. Comparing facilities per square metre can reward an inefficient operation with low throughput; comparing emissions per compliant kilogram delivered better reflects logistics performance.

Allocation is required when a process serves multiple products. Impacts may be allocated by mass, economic value, energy content, or another causal relationship. The choice can materially affect results. Therefore, studies should disclose the allocation rule and, where material, perform sensitivity analysis.

3. Energy Use and Carbon Accounting

Energy demand in cold chains is influenced by product temperature, ambient conditions, refrigeration efficiency, door openings, insulation, equipment age, load factor, route design, defrosting, and operating discipline. Electricity consumption may be recorded from meters, while fuel use can be obtained from vehicle telematics, invoices, or fuel cards.

A basic energy-intensity indicator is:

where I_E is energy intensity, usually in kWh per tonne delivered; E is energy consumed in kWh; and Q is the quantity of compliant product delivered in tonnes. The measure is meaningful only when the quantity definition, temperature class, distance, service level, and time period are specified.

For greenhouse-gas accounting, emissions are commonly estimated by multiplying activity data by an emission factor:

where GHG is emissions, normally expressed as kg CO₂e; A_i is activity data for source i; and EF_i is the corresponding emission factor. Electricity may be calculated using kWh and kg CO₂e/kWh; diesel using litres and kg CO₂e/litre; and refrigerant leakage using kilograms leaked and kg CO₂e/kg refrigerant. The result is dimensionally consistent because activity units cancel with the denominator of the emission factor.

Carbon accounting should distinguish:

• Scope 1: direct emissions from owned or controlled sources, including fuel combustion and refrigerant leakage.
• Scope 2: indirect emissions from purchased electricity, steam, heating, or cooling.
• Scope 3: other value-chain emissions, such as outsourced transport, equipment manufacture, packaging, purchased goods, and product disposal.

Market-based and location-based electricity accounting can produce different Scope 2 results. A market-based method uses contractual instruments where permitted; a location-based method uses average grid factors. Organizations should avoid presenting a favorable method as proof of physical decarbonization.

Refrigerants and High-Impact Leakage

Refrigerants can have high global-warming potential (GWP). Their climate impact is estimated as:

where m is the mass of refrigerant released in kilograms and GWP is its warming potential relative to carbon dioxide over the specified assessment period. The result is expressed in kg CO₂e. This is a simplified direct-emission calculation and assumes the selected GWP factor is appropriate for the refrigerant and reporting standard.

Refrigerant management includes leak detection, preventive maintenance, accurate charging, recovery during servicing, technician competence, and legally compliant disposal. Substitution is not automatically sustainable: a refrigerant with low GWP may have safety, toxicity, flammability, energy-efficiency, or equipment-compatibility implications. The correct decision compares total life-cycle performance rather than one attribute.

Worked Example: Warehouse Emissions

An illustrative distribution center consumes 120,000 kWh of electricity and 18,000 litres of diesel in one year. Assume an electricity factor of 0.40 kg CO₂e/kWh and a diesel factor of 2.68 kg CO₂e/litre. It also records a 35 kg release of a refrigerant with GWP 1,430.

Electricity emissions are 120,000 × 0.40 = 48,000 kg CO₂e. Diesel emissions are 18,000 × 2.68 = 48,240 kg CO₂e. Refrigerant emissions are 35 × 1,430 = 50,050 kg CO₂e. Total estimated emissions are therefore 146,290 kg CO₂e, or approximately 146.3 tonnes CO₂e.

This example shows why refrigerant leakage can dominate the result even when its physical quantity is small. It also demonstrates why carbon inventories should not focus on electricity alone.

4. Food Loss, Waste, and the Cold-Chain Paradox

Food loss occurs before retail or consumption, while food waste generally refers to discarded food at retail, food service, or household stages; definitions vary by jurisdiction. Cold chains can reduce loss by slowing microbial growth and physiological deterioration, but they can also create loss when temperature control is unreliable, demand forecasts are inaccurate, or contractual standards reject safe products for cosmetic reasons.

The climate cost of food loss is not limited to disposal. It includes agricultural production, processing, packaging, transport, refrigeration, and land and water use already invested in the product. A simple estimate of embodied emissions avoided through loss reduction is:

where M_loss,reduced is the mass of avoidable loss reduced and EF_product is the product’s life-cycle emission factor per unit mass. This estimate is valid only if the emission factor boundary matches the loss stage and if rebound effects and additional preservation impacts are considered.

Loss reduction should follow a hierarchy: prevent deterioration first; redistribute safe surplus second; process or repurpose suitable material third; recover energy or nutrients where feasible; and landfill only as a last resort. Food safety remains non-negotiable. Donation or diversion must never bypass temperature, traceability, labeling, or regulatory requirements.

Important indicators include loss percentage, rejected units, time outside specification, edible-product yield, and emissions per compliant kilogram delivered. A low loss rate achieved through excessive refrigeration energy may not be optimal, so environmental and service indicators should be assessed together.

5. Packaging, Reuse, and Circularity

Packaging protects products from contamination, damage, dehydration, and temperature excursions. Eliminating packaging without considering these functions can increase product loss and produce a worse environmental outcome. Sustainability analysis should therefore compare the combined impact of packaging and product protection.

Circularity moves beyond a simple linear model of take, make, use, and discard. In cold chains it can involve:

• reusable crates, pallets, and insulated containers;
• repair and refurbishment of refrigeration equipment;
• refrigerant recovery and reclamation;
• recycled-content materials where food-contact rules permit;
• reverse logistics for containers and packaging; and
• design for disassembly and material recovery.

A reusable container is not automatically better. Its advantage depends on the number of cycles, reverse-transport distance, washing energy and water, loss rate, and end-of-life treatment. A simplified break-even condition is:

where n is the number of completed reuse cycles; I_single-use is the impact of one single-use container; I_reusable,initial is the initial manufacturing impact of the reusable container; and I_reusable,cycle is the impact per reuse cycle, including washing and reverse logistics. The comparison requires the same functional unit and system boundary. It does not include impacts of product loss unless those are separately modeled.

Managers should track return rates, cycle counts, damage, contamination, washing intensity, material composition, and recovery rates. Claims such as “recyclable” or “carbon neutral” require evidence, defined boundaries, and consideration of actual collection infrastructure rather than theoretical recyclability.

6. Social Sustainability and Equitable Access

Cold-chain investment can improve nutrition, public health, and farmer incomes, but benefits are not automatically distributed fairly. Remote communities may receive inferior service because delivery is less profitable. Small producers may be excluded by strict volume, packaging, digital, or certification requirements. High-quality cold storage may be concentrated near wealthy markets while low-income consumers face high prices or unreliable supply.

Equity analysis asks:

• Who receives the service and who is excluded?
• Who pays for infrastructure and who captures its benefits?
• Are standards feasible for small suppliers, cooperatives, and informal operators?
• Are rural and low-income communities represented in planning?
• Does pricing preserve access to nutritious and essential products?

Possible responses include shared cold-storage facilities, cooperative ownership, transparent service standards, cross-subsidized routes, appropriate technology, public-private investment, and technical assistance for smaller suppliers. Equity does not mean abandoning safety or quality standards; it means designing realistic pathways for compliance and participation.

Labor conditions are equally important. Cold environments, repetitive handling, night work, vehicle operation, and exposure to ammonia or other refrigerants create occupational risks. A responsible system requires risk assessments, personal protective equipment, training, adequate breaks, safe working temperatures, emergency procedures, fair wages, lawful working hours, freedom from retaliation, and channels for worker voice. Social audits should supplement—not replace—direct worker engagement and incident data.

7. Integrity Risks: Diversion, Falsification, and Misrepresentation

Perishables are vulnerable to diversion because they have short shelf lives, variable market values, and complex custody chains. Product diversion may be legitimate, such as approved redistribution of surplus, or illegitimate, such as unauthorized resale, substitution, theft, or movement into markets where labeling and safety requirements are not met.

Falsification may involve altered temperature records, counterfeit certificates, manipulated quantities, false origin claims, or fabricated sustainability data. These practices can cause food-safety incidents, financial loss, regulatory sanctions, and loss of public trust.

Controls should be risk-based and layered:

1. define chain-of-custody responsibilities and authorization levels;
2. use tamper-evident seals and documented handovers;
3. reconcile physical quantities with digital records;
4. apply independent calibration and audit procedures;
5. investigate anomalies rather than automatically blaming operators;
6. protect whistleblowers and preserve evidence; and
7. impose proportionate consequences while correcting systemic incentives.

Blockchain or distributed ledgers may improve record permanence, but they cannot guarantee that an input was truthful when entered. A false temperature reading can be immutably stored. Governance therefore requires sensor calibration, access controls, segregation of duties, physical verification, and clear accountability in addition to digital records.

8. Responsible Data Use and AI

Cold-chain systems generate data about locations, temperatures, drivers, workers, suppliers, customers, and product movements. Data governance should address purpose limitation, data minimization, accuracy, retention, access, cybersecurity, confidentiality, and lawful processing.

Workers should not be subjected to opaque automated decisions based on incomplete or biased data. For example, a route algorithm may penalize a driver for temperature excursions caused by faulty equipment or unrealistic loading schedules. AI used for demand forecasting or predictive maintenance should be validated across seasons, locations, products, and supplier groups. Managers must define who reviews exceptions and who is accountable when an automated recommendation causes harm.

Good practice includes data dictionaries, time synchronization, calibration records, audit trails, model-performance monitoring, human override procedures, and incident-response plans. Sustainability dashboards should distinguish measured values, estimates, assumptions, and unverifiable claims. False precision is a governance failure.

9. Governance Architecture and Accountability

Governance operates at several levels:

• Board or executive level: approves sustainability objectives, risk appetite, investment, and public commitments.
• Network level: assigns responsibilities among producers, carriers, warehouses, retailers, regulators, and service providers.
• Operational level: controls procedures, maintenance, training, data quality, and incident response.
• External level: includes regulation, certification, assurance, worker representation, community participation, and consumer scrutiny.

An effective governance system links targets to decisions. For example, a target to reduce emissions by 30% is weak if capital budgets reward only short-term payback and procurement contracts ignore refrigerant leakage. Contracts should define data requirements, service levels, maintenance obligations, labor expectations, audit rights, corrective action, and remedies.

A balanced scorecard may combine the following indicators:

Targets should be specific, time-bound, and accompanied by baselines and verification methods. A company should report unfavorable results as well as improvements. Assurance is particularly important for public claims, carbon credits, Scope 3 estimates, and product-level environmental labels.

10. Illustrative Case: The NorthRiver Fresh Network

Background

NorthRiver Fresh is an illustrative regional distributor of vegetables, dairy products, and prepared meals. It operates one distribution center, contracts refrigerated transport, and supplies supermarkets and institutional kitchens. Management reports rising energy costs, 6.5% product rejection, and complaints from small growers that delivery standards are inaccessible.

Problem

The company plans to replace aging refrigeration equipment and introduce reusable plastic crates. A narrow financial analysis recommends the cheapest equipment and single-use packaging. However, a sustainability review identifies refrigerant leakage, poor temperature-data quality, excessive empty return trips, worker exposure to low temperatures, and unequal access for remote suppliers.

Analysis

The team establishes a cradle-to-consumer boundary and uses one compliant kilogram delivered as the functional unit. It meters electricity, estimates outsourced transport fuel from telematics, audits refrigerant service records, and separates avoidable product loss from unavoidable trimming. It also conducts confidential worker interviews and supplier workshops.

The assessment finds that refrigerant leakage is responsible for a large share of direct emissions. Reusable crates perform better only if they complete at least 25 verified cycles and return routes are coordinated. Product rejection is concentrated among smaller growers because they lack pre-cooling equipment, not because their products are intrinsically unsafe. Temperature sensors are present but several have not been calibrated.

Approach and Solution

NorthRiver adopts a portfolio rather than a single intervention:

• replace high-leakage refrigeration components and introduce automatic leak detection;
• procure lower-impact refrigerant systems after safety and efficiency review;
• install sub-metering and establish energy-intensity baselines;
• create shared pre-cooling appointments for small growers;
• use a graded acceptance protocol that distinguishes safety failures from correctable cosmetic defects;
• deploy reusable crates on routes with reliable backhauls;
• require cycle tracking, washing controls, and loss reporting;
• recalibrate sensors and require independent verification of critical data;
• establish worker temperature-exposure controls and a confidential grievance channel; and
• publish quarterly performance results, including unresolved incidents.

Outcome

After one year, the company reports lower electricity intensity, fewer refrigerant incidents, reduced rejection, and higher supplier participation. Total emissions do not fall as quickly as intensity because sales volume expands. This distinction is disclosed publicly. The reusable-crate program is limited to routes where return rates are high; single-use packaging remains for remote deliveries where the alternative would create more transport and product loss.

Learning Points

The case demonstrates that sustainability is a systems problem. The best solution is not necessarily the lowest-energy technology, the most recyclable material, or the cheapest contract. Reliable measurement, supplier inclusion, worker protection, and transparent governance are necessary to convert technical improvements into legitimate sustainability performance.

11. Challenges and Limitations

Sustainability analysis contains uncertainty. Emission factors differ by geography and methodology; Scope 3 data may be estimated; product-specific life-cycle data may be unavailable; and allocation can change conclusions. Digital monitoring creates its own energy, privacy, and cybersecurity burdens. Carbon reduction may conflict with resilience if redundancy is removed. Electrification may shift emissions upstream where electricity remains carbon-intensive. Reusable systems may fail when reverse logistics are poorly coordinated.

There are also ethical limits to optimization. A mathematically efficient route may be unsafe for workers. A strict loss target may encourage falsification. A predictive model may prioritize profitable customers and deepen inequity. Consequently, quantitative indicators should support deliberation, not replace judgment, rights, or regulatory compliance.

12. Best-Practice Road Map

A graduate-level manager can organize action through the following sequence:

1. Define the service, functional unit, stakeholders, and system boundary.
2. Establish a verified baseline for energy, fuel, refrigerants, loss, packaging, labor, and access.
3. Identify hotspots using life-cycle and risk-based analysis.
4. Prioritize prevention: efficient design, maintenance, accurate forecasting, and safe handling.
5. Evaluate alternatives using total life-cycle cost and impact, not purchase price alone.
6. Pilot changes and measure unintended consequences.
7. Embed requirements in contracts, training, incentives, and audit protocols.
8. Protect data integrity, privacy, worker voice, and whistleblowers.
9. Report absolute and intensity-based results with assumptions and uncertainty.
10. Review targets periodically with suppliers, workers, communities, and regulators.

Chapter Summary

Sustainable cold-chain management integrates environmental, social, economic, and governance concerns. Life-cycle thinking prevents managers from shifting impacts between refrigeration, transport, packaging, product loss, and disposal. Energy and emissions should be measured with clear boundaries, functional units, emission factors, and transparent assumptions. Refrigerant leakage can be a major climate impact even when the mass released is small.

Food-loss prevention often produces significant environmental benefits, but safety and quality controls remain essential. Packaging decisions require comparison of protection, reuse cycles, reverse logistics, washing, and end-of-life outcomes. Equitable access, safe labor conditions, supplier inclusion, and worker voice are core sustainability requirements rather than optional additions. Diversion, falsification, and misleading environmental claims require layered controls and independent verification. Digital tools and AI can improve visibility, but they also create privacy, cybersecurity, bias, and accountability risks.

Effective governance assigns responsibility, aligns contracts and incentives, validates data, monitors both absolute and intensity-based indicators, and provides remedy when failures occur. The strategic objective is a cold chain that delivers safe products reliably while reducing total life-cycle harm and distributing benefits fairly.

Key Terms

Life-cycle assessment: A method for evaluating environmental impacts across defined stages of a product or service’s life.

Functional unit: The quantified reference service used to compare environmental performance.

System boundary: The stages, processes, and flows included in an assessment.

Carbon accounting: Measurement and reporting of greenhouse-gas emissions from defined activities and boundaries.

Scope 1: Direct emissions from owned or controlled sources.

Scope 2: Indirect emissions from purchased energy.

Scope 3: Other indirect value-chain emissions.

Global warming potential: A factor expressing the climate effect of a gas relative to carbon dioxide.

Refrigerant leakage: Unintended or released refrigerant emissions from cooling equipment.

Food loss: Reduction in food quantity or quality before consumption, commonly before retail or consumption stages.

Food waste: Food discarded or otherwise not consumed, especially at retail, food-service, or household stages.

Circularity: Designing systems to retain products, materials, and value through reuse, repair, recovery, and recycling.

Reverse logistics: Movement of products, packaging, or equipment back through the supply chain.

Equity: Fair distribution of benefits, burdens, opportunities, and participation.

Product diversion: Unauthorized or alternative movement of products outside approved channels.

Falsification: Deliberate alteration or fabrication of records, measurements, certificates, or claims.

Data governance: Rules and responsibilities governing data quality, access, use, protection, and accountability.

Materiality: The significance of an issue to decisions, impacts, stakeholders, or reported performance.

Assurance: Independent evaluation of the reliability of reported information or claims.

Triple bottom line: Evaluation of environmental, social, and economic performance together.

Review Questions

Short Answer Questions

1. Why must a cold-chain sustainability assessment specify a functional unit and system boundary?
2. Distinguish Scope 1, Scope 2, and Scope 3 emissions in a refrigerated distribution network.
3. Why can refrigerant leakage be environmentally significant despite a small released mass?
4. Identify two conditions under which reusable packaging may fail to outperform single-use packaging.
5. Why are worker voice and grievance mechanisms important elements of cold-chain governance?

Long Answer Questions

1. Explain how life-cycle thinking can prevent the transfer of environmental burdens between refrigeration, transport, packaging, and food loss.
2. Discuss the relationship between cold-chain investment and equitable access for small suppliers and low-income communities.
3. Evaluate the governance controls required to prevent product diversion and falsification of temperature records.
4. Explain why emissions intensity and absolute emissions should both be reported by a growing cold-chain company.
5. Critically assess the benefits and risks of using AI and sensor platforms in cold-chain sustainability management.

Analytical / Application Questions

1. A warehouse consumes 90,000 kWh of electricity at 0.45 kg CO₂e/kWh and leaks 20 kg of refrigerant with GWP 1,430. Calculate total emissions from these two sources and identify which source is larger.
2. A reusable crate has an initial impact of 18 kg CO₂e, a washing and return impact of 0.8 kg CO₂e per cycle, and replaces single-use crates producing 1.6 kg CO₂e each. Determine the minimum number of complete cycles required for the reusable crate to have lower cumulative emissions, ignoring product-loss effects.
3. Design a governance dashboard for a perishable-food distributor that combines environmental, product-integrity, labor, equity, and data-quality indicators. Explain how you would prevent the dashboard from rewarding misleading short-term improvements.

Multiple Choice Questions with Answers

Question 1

Which measure best represents the energy required to provide a cold-chain delivery service?

A. Total warehouse floor area

B. kWh per compliant tonne delivered

C. Number of refrigeration units installed

D. Total number of employees

Correct Answer: B. kWh per compliant tonne delivered

Question 2

A company’s direct refrigerant emissions are most appropriately classified as which GHG Protocol category?

A. Scope 1

B. Scope 2

C. Scope 3 purchased goods

D. Scope 3 employee commuting

Correct Answer: A. Scope 1

Question 3

If 10 kg of refrigerant with a GWP of 1,430 is released, the estimated climate impact is:

A. 14.3 kg CO₂e

B. 143 kg CO₂e

C. 1,430 kg CO₂e

D. 14,300 kg CO₂e

Correct Answer: C. 1,430 kg CO₂e

Question 4

Which statement best describes a functional unit in life-cycle assessment?

A. The legal owner of an asset

B. The reference quantity of service used for comparison

C. The maximum capacity of a warehouse

D. The number of suppliers in a network

Correct Answer: B. The reference quantity of service used for comparison

Question 5

Why is reusable packaging not automatically more sustainable than single-use packaging?

A. Reusable packaging cannot be cleaned

B. Its performance depends on cycles, washing, returns, and losses

C. Single-use packaging never creates waste

D. Reusable packaging always requires more material extraction

Correct Answer: B. Its performance depends on cycles, washing, returns, and losses

Question 6

Which control most directly improves the credibility of temperature data?

A. Increasing the number of marketing claims

B. Removing all manual records

C. Calibrating sensors and preserving audit trails

D. Allowing suppliers to edit historical readings

Correct Answer: C. Calibrating sensors and preserving audit trails

Question 7

What is a principal equity concern in cold-chain development?

A. Whether all facilities use identical paint colors

B. Whether infrastructure benefits and compliance burdens are fairly distributed

C. Whether every product has the same selling price

D. Whether transport routes are always identical

Correct Answer: B. Whether infrastructure benefits and compliance burdens are fairly distributed

Question 8

A warehouse emits 48,000 kg CO₂e from electricity and 48,240 kg CO₂e from diesel. What is the combined emission before considering other sources?

A. 48,240 kg CO₂e

B. 96,240 kg CO₂e

C. 96,480 kg CO₂e

D. 144,720 kg CO₂e

Correct Answer: B. 96,240 kg CO₂e

Question 9

Which statement about blockchain in cold-chain governance is correct?

A. It guarantees that every sensor input is truthful

B. It eliminates the need for calibration

C. It can preserve records but cannot validate false data entered at the source

D. It automatically prevents product diversion

Correct Answer: C. It can preserve records but cannot validate false data entered at the source

Question 10

Why should a growing company report both absolute emissions and emissions intensity?

A. Intensity always replaces absolute emissions

B. Absolute emissions show total impact while intensity shows performance relative to output

C. Absolute emissions are relevant only to small companies

D. The two measures are mathematically identical

Correct Answer: B. Absolute emissions show total impact while intensity shows performance relative to output