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Upstream & Downstream Distribution Emissions Calculator

An offline calculator for upstream & downstream distribution emissions

Becky Connell avatar
Written by Becky Connell
Updated over 2 months ago

What are upstream and downstream distribution emissions?

Upstream and downstream distribution emissions cover greenhouse gases generated before and after your product leaves your direct control:

Upstream Emissions:

  • Supplier transportation

  • Raw material shipping

  • Pre-production logistics

  • Vendor vehicle emissions

Downstream Emissions:

  • Customer product delivery

  • Product usage emissions

  • End-of-life product disposal

  • Return transportation

  • Product recycling or waste processing

Why are they important?

These emissions matter because they can often represent 30-50% of total supply chain emissions for SMEs. They're critical for comprehensive carbon accounting and demonstrating environmental responsibility to stakeholders and customers.

How can I input this into Zellar?

If you have completed mission 1 & 2, you should be able to visit the emissions page which will allow you to add more data. Select the year you have calculated this for and enter the final figures for both your upstream and downstream distributions into the relevant sections on the dropdown.

What next?

Here are a few ideas on what you can do next - all of these actions can be found under projects.

  1. Optimise delivery routes and schedules

  2. Consider switching to electric or hybrid vehicles

  3. Implement a vehicle maintenance program

  4. Train drivers in fuel-efficient driving

  5. Consolidate shipments where possible

  6. Explore local sourcing options

  7. Partner with eco-friendly logistics providers

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