Carbon intensity of spend
DitchCarbon plots carbon intensity of spend against the industry intensity for the same categories, so a team can see whether the organisations it buys from are outperforming their sector.
The chart plots your emissions and spend together with two intensity lines: your own carbon intensity, and the industry intensity for the same categories. Where your line sits below the industry line, the organisations you buy from are outperforming their sector. Where it sits above, the years and categories to look at first are visible.
Carbon intensity per unit of spend is the measure that survives a change in volume. Total emissions rise when you buy more, which makes year on year comparison unreliable if the business grew. Intensity strips that out, so a falling line means the supply chain got cleaner rather than smaller.
The industry line is what makes your own line mean anything. On its own, an intensity figure is a number without a scale. Against the sector for the same categories it becomes a position: ahead, behind, or moving the right way while the sector moves faster.
Both lines are drawn from the same underlying data, so the comparison is like for like rather than your measured figure against somebody else's estimate.
Common questions
The industry line is calculated from the same underlying dataset as your own line, using the sector average for the categories you actually buy in. That makes it a like-for-like comparison rather than your measured figure set against somebody else's estimate.
Total emissions rise when a business buys more, so a year on year comparison is unreliable if the business grew. Intensity per unit of spend strips volume out, which means a falling line reflects a supply chain that got cleaner rather than one that simply got smaller.
See it on your own suppliers or portfolio companies
Numbers you can defend within 2 weeks.
