Harvard Business Review LogoJuly 7, 2026Illustration by Deanna HalsellSustainability proposals often stall not because they lack merit, but because they are framed in a language that does not match how senior leaders allocate capital. While CSOs tend to emphasizeA chief sustainability officer presents the case for an investment to her company’s senior leadership team. Heads nod. There is no pushback. But the meeting ends, as many do, without a clear commitment. A few weeks later, the proposal is still circulating, still waiting on “a bit more analysis.”
Make the Business Case for Your Sustainability Initiative
Sustainability proposals often stall not because they lack merit, but because they are framed in a language that does not match how senior leaders allocate capital. While CSOs tend to emphasize impact, materiality, and disclosure, CFOs and CEOs need to understand cash flow, risk, and return. External reporting frameworks are useful for accountability, but they are poorly suited to internal investment decisions, which require project-level comparisons rather than aggregated enterprise metrics. Sustainability investments should therefore be evaluated like any other investment: by showing how they reduce current costs, avoid future costs, generate new revenue, or protect existing revenue. Strong cases begin with a clear business story that links the proposed action to a specific business impact and cash-flow outcome, then quantify what can credibly be quantified while treating harder-to-measure benefits as either upside or an explicit strategic bet.
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