Why Most Corporate Climate Plans Fail at Year Three

The corporate net-zero commitment is easy. The first eighteen months are easy. The energy efficiency projects that should have been done anyway get done. The fleet starts to electrify. The renewable PPA gets signed. There is a press release and a sustainability report and a board update that everyone feels good about.

Year three is where almost everyone gets stuck.

The shape of the year-three wall

The pattern is consistent across companies I have worked with. The first wave of decarbonization actions covers maybe a third of the total emissions footprint. They are mostly Scope 2 and the easier parts of Scope 1. The reductions are real and the cost per ton is reasonable.

The second wave is harder. Process heat. Industrial fuel switching. Logistics emissions outside the company's direct control. Scope 3 categories that depend on suppliers the company does not have leverage over. The cost per ton goes up, sometimes by an order of magnitude, and the path to action is unclear.

The sustainability team that delivered the first wave with relative autonomy now needs cross-functional buy-in from procurement, operations, and finance. That buy-in is much harder to get. Year three is when the climate plan stops being a sustainability project and starts being an operating decision, and most companies are not organized to make operating decisions about climate.

What separates the plans that keep moving

The companies that get through year three share three characteristics.

First, climate accountability has moved out of the sustainability function and into the operating P&Ls. The business unit leader has carbon targets the same way they have margin targets, and they are evaluated against both. As long as climate sits with sustainability, every cross-functional ask is a negotiation. Once it sits with the business unit, the negotiation is internal to a team that already has aligned incentives.

Second, the company has built or hired the technical depth to evaluate decarbonization investments on the same terms as other capital projects. This sounds basic. It is not. Most companies' finance teams have no framework for evaluating a heat-as-a-service contract, a fleet electrification financing structure, or a long-term clean fuels offtake. The first time these proposals hit the CFO, they get sent back for more analysis that nobody on the sustainability team can produce. The companies that move past year three have invested in the financial muscle to underwrite these projects internally.

Third, the company has narrowed its commitments. The companies that publicly committed to broad, ambitious targets across every scope tend to stall the hardest. The companies that committed to specific, measurable, well-scoped reductions tend to keep delivering. The narrower commitment is easier to defend, easier to fund, and easier to expand once the early projects have built credibility.

What this means for boards

If you sit on a board with a corporate net-zero commitment that is now three years in, the right question to ask is not 'are we on track to the 2030 target.' The right question is 'do the business unit leaders have carbon targets in their compensation, and does our finance team have the framework to underwrite decarbonization capital.'

If the answer to either is no, the plan will stall, regardless of what the headline target says. If the answer is yes, the plan has a real chance of delivering what was promised.

The year-three wall is not a sign that the commitment was wrong. It is a sign that the operating model has caught up to the strategy, and the strategy is now waiting for the operating model. The companies that recognize this and rebuild the operating model are the ones that will deliver. The companies that double down on the original plan structure will not.