Scope 3 Emissions
Short Explanation: Scope 3 emissions are all indirect greenhouse gas emissions across your value chain, outside your own operations and purchased energy.
In-Depth Explanation
Scope 3 is usually the largest part of a company’s carbon footprint. It covers emissions that happen upstream (suppliers, logistics, purchased goods) and downstream (product use, distribution, end-of-life) that your company does not directly control. The scope is defined in the Greenhouse Gas (GHG) Protocol. In B2B, Scope 3 matters because customers, regulators, and investors increasingly expect transparent reporting and credible reduction plans. It also affects procurement: many buyers ask vendors for emissions data as part of tenders.
How it Works:
- Map the value chain: List upstream and downstream activities that create emissions connected to your products and services.
- Choose categories: Use the GHG Protocol Scope 3 categories (for example purchased goods and services, business travel, transportation, use of sold products).
- Collect activity data: Gather spend, volumes, distances, supplier data, and product usage data where available.
- Apply emission factors: Convert activity data into CO2e using accepted factors or supplier-specific factors when possible.
- Prioritize reductions: Focus on the biggest categories and work with suppliers and customers on practical levers.
Real-Life Example
A manufacturer reports low Scope 1 and 2 emissions because its own factories run on renewable electricity. But when it calculates Scope 3, it finds most emissions come from steel and electronics suppliers (upstream) and from the energy used by customers running the equipment (downstream). The company then works with key suppliers on lower-carbon materials and redesigns the product to use less power in operation. Scope 3 becomes the main driver of its climate roadmap and its sustainability reporting.