Chapter 08 · Finance, data & evidenceSustainable Finance & Investment
Weighted average carbon intensity (WACI)
Definition
Weighted average carbon intensity is a portfolio metric that weights companies' carbon intensity by their portfolio weight.
References
This reference provides supporting context for how “Weighted average carbon intensity (WACI)” is defined and used.
Overview
What it means in practice
Weighted average carbon intensity (WACI) should be read as a sustainable-finance term. Its meaning depends on the instrument, mandate, metric, disclosure framework and evidence of use or outcome.
In practice, users should state the boundary, actor, method and evidence. That keeps weighted average carbon intensity (waci) specific enough for review without turning it into a broader claim.
Why it matters
Weighted average carbon intensity (WACI) matters because finance labels can influence capital allocation, product claims and accountability. Clear boundaries help distinguish ambition, method, measurement and realised outcome.
Common misconception
A common error is to use Weighted average carbon intensity (WACI) without stating the financial product, portfolio boundary, metric or disclosure rule. Those details often determine the claim.
Review questions
Who or what is covered by the term? What evidence supports it? What limitation, method or affected group would change how a reader interprets the claim?
How it is used
Investors, lenders, analysts, data providers and sustainability teams use “Weighted average carbon intensity (WACI)” in capital allocation, risk assessment, measurement, valuation, due diligence and performance analysis. In each case, the user should state the calculation method, data provenance, assumptions, boundary and decision purpose; otherwise, the same term may be applied to materially different situations.
In this context, it refers to a portfolio metric that weights companies' carbon intensity by their portfolio weight.