CPL Green Logistics & Sustainability 3 — Questions and Answers
Question 1: Which transportation mode produces the LOWEST carbon dioxide emissions per tonne-kilometer on average?
- Heavy-duty diesel truck
- Short-haul domestic air freight
- Ocean container shipping (Correct answer)
- High-speed rail freight
Correct answer: Ocean container shipping
Ocean container shipping produces roughly 10–15 grams of CO2 per tonne-kilometer, far less than trucking or air freight.
Question 2: What is 'carbon offsetting' in logistics operations?
- Switching to biofuels to directly reduce tailpipe emissions
- Purchasing credits that fund emission reduction projects to compensate for unavoidable emissions (Correct answer)
- Relocating distribution centers closer to customers to cut travel distance
- Reducing packaging weight to lower the carbon cost per shipment
Correct answer: Purchasing credits that fund emission reduction projects to compensate for unavoidable emissions
Carbon offsetting involves buying credits tied to projects that reduce or sequester emissions elsewhere, compensating for emissions that cannot yet be eliminated.
Question 3: A company adopts a 'circular economy' logistics model. Which practice is most consistent with this approach?
- Prioritizing single-use packaging to minimize return shipment costs
- Designing packaging for reuse and establishing closed-loop return systems (Correct answer)
- Outsourcing all waste disposal to third-party recyclers
- Increasing safety stock to prevent stockouts caused by reverse flows
Correct answer: Designing packaging for reuse and establishing closed-loop return systems
Circular economy logistics emphasizes designing products and packaging for repeated use and building return systems to keep materials in circulation.
Question 4: Which key performance indicator (KPI) best measures fleet fuel efficiency improvement over time?
- Total miles driven per driver per month
- Revenue per loaded mile
- Miles per gallon (MPG) or liters per 100 km across the fleet (Correct answer)
- Number of on-time deliveries per route
Correct answer: Miles per gallon (MPG) or liters per 100 km across the fleet
Fleet MPG or fuel consumption per distance is the direct measure of fuel efficiency and directly correlates with emissions and operating costs.
Question 5: What is the environmental advantage of cross-docking in a distribution network?
- It eliminates the need for refrigeration in cold chain logistics
- It reduces storage time and consolidates loads, cutting transport trips and energy use (Correct answer)
- It allows companies to bypass customs inspections at border crossings
- It increases inventory buffer stock to prevent supply disruptions
Correct answer: It reduces storage time and consolidates loads, cutting transport trips and energy use
Cross-docking minimizes storage energy consumption and enables load consolidation, reducing the number of vehicle trips and associated emissions.
Question 6: An e-commerce retailer wants to reduce the environmental impact of last-mile delivery. Which strategy is MOST effective?
- Offering same-day delivery to reduce repeat order rates
- Consolidating deliveries to nearby addresses on a single route (Correct answer)
- Shipping all orders via air freight to speed up transit times
- Using individual couriers on personal vehicles for flexibility
Correct answer: Consolidating deliveries to nearby addresses on a single route
Route consolidation reduces the number of vehicle trips per package delivered, directly lowering emissions and fuel use per delivery.
Question 7: Which of the following best describes a 'green supplier scorecard'?
- A financial rating system used to assess supplier creditworthiness
- An evaluation tool that measures suppliers' environmental performance across criteria like emissions, waste, and resource use (Correct answer)
- A government certification that grants tax incentives to sustainable vendors
- A customs document required for importing eco-labeled products
Correct answer: An evaluation tool that measures suppliers' environmental performance across criteria like emissions, waste, and resource use
A green supplier scorecard systematically rates vendors on environmental criteria, enabling companies to select and develop more sustainable supply chain partners.
CPL Green Logistics & Sustainability 3
Which transportation mode produces the LOWEST carbon dioxide emissions per tonne-kilometer on average?