Climate scenario analysis: moving beyond compliance to strategy

What climate scenario analysis is — and what AASB S2 requires

Climate scenario analysis is the structured assessment of how an organisation would perform under a range of plausible climate futures. It is not forecasting. It is a disciplined way of stress-testing strategy against uncertainty — exploring how revenue, costs, assets, supply chains and capital would behave under different physical and policy conditions.

Under AASB S2 — Australia's mandatory climate disclosure standard, embedded in the Corporations Act 2001 — in-scope entities must assess the resilience of their strategy and business model using at least two climate scenarios, including one consistent with limiting global warming to 1.5°C and at least one higher-warming scenario. The analysis must cover both physical risk and transition risk, and the results must be disclosed in the annual Sustainability Report.

Importantly, while forward-looking scenario disclosures sit within AASB S2's three-year modified liability period, the underlying methodology and assumptions must be documented and defensible from Year 1. There is no grace period on rigour.

Why most scenario analysis stops at compliance

For many organisations, the first round of scenario analysis is treated as a disclosure obligation to be discharged: select two scenarios, produce a qualitative narrative, satisfy the auditor, publish. That approach meets the letter of the standard — but it leaves most of the value on the table.

The symptoms of a compliance-only approach are familiar:

• Scenarios are described qualitatively but never quantified, so the board cannot see the dollar impact on revenue, costs or asset values.
• The analysis lives in the sustainability report and never reaches the strategy, capital-allocation or risk processes where decisions are made.
• Outputs are disconnected from the financial statements — impairment testing, provisioning, useful-life and going-concern assumptions carry on as if climate scenarios did not exist.
• The transition plan, where one exists, is not tested against the same scenarios, so the disclosed emissions trajectory and the modelled risk exposures contradict each other.

The result is a document that satisfies a requirement without changing a single decision.

Moving beyond compliance: scenario analysis as a strategy tool

Treated strategically, climate scenario analysis becomes one of the most useful planning tools a board has. It answers questions that matter regardless of regulation:

• Resilience

  Where would our strategy break under a disorderly transition or a high-physical-risk future — and what would it take to make it robust?

• Capital allocation

  Which assets, products or markets are most exposed, and how should that shape capex, investment and divestment decisions?

• Cost of capital and funding

  How do different scenarios affect the assumptions lenders and investors apply to our credit and valuation — and how do we get ahead of that conversation?

• Opportunity

  Where does the transition create demand, pricing power or competitive advantage we should be positioning for now?

Scenario analysis done this way is not a backward-looking compliance artefact. It is a forward-looking input into strategy, risk appetite and capital decisions — and it happens to also satisfy AASB S2.

Physical risk versus transition risk — what you are actually testing

Robust scenario analysis examines two distinct risk categories, because they behave differently across warming pathways:

• Physical risk

  Arises from the climate itself — acute events (floods, fires, storms) and chronic shifts (heat stress, water scarcity, sea-level rise). These tend to increase in higher-warming scenarios and affect asset integrity, operations, supply chains and insurability.

• Transition risk

  Arises from the shift to a low-carbon economy — carbon pricing, policy and regulation, technology change, stranded assets and shifting customer and capital preferences. These tend to intensify in lower-warming, faster-transition scenarios.

A credible analysis quantifies both, for the organisation's specific sector, asset base and geography — and shows how exposure shifts as the pathway changes. That trade-off between physical and transition exposure is precisely what makes the exercise strategically revealing.

How Lever Impact approaches climate scenario analysis

Lever Impact's scenario analysis is built by chartered accountants who treat it as a financial and strategic exercise, not a reporting one:

• Scenario selection — Aligned with recognised pathways — IPCC, the IEA's World Energy Outlook scenarios (such as Net Zero, Announced Pledges and Stated Policies), and NGFS — chosen to fit your industry, asset base and geography.
• Time horizons — Defined across short, medium and long term, consistent with AASB S2.
• Financial impact quantification — Revenue sensitivity, cost exposure, asset impairment risk, and capex requirements modelled in dollar terms, not described in adjectives.
• Capital and funding implications — How scenario outcomes affect cost of capital and the assumptions lenders and investors apply.
• Transition plan linkage — Connecting scenario outputs to an actionable, costed decarbonisation pathway so disclosures and strategy are internally consistent.
• Board-ready disclosure — Outputs structured for AASB S2 and for genuine investor communication.

The point of difference: a finance lens, not a compliance lens

Most climate scenario analysis in the market is produced by sustainability specialists without deep financial capability, or by generalists without climate depth. The output reads well but rarely connects to the numbers the board, the auditor and investors actually use.

Lever Impact sits at the intersection. As chartered accountants with corporate finance and ESG expertise, we translate scenario outputs into the same financial framework used to evaluate every other strategic decision — impairment, provisioning, capital allocation, cost of capital and valuation. That is what turns climate scenario analysis from a disclosure obligation into decision-useful intelligence, and it is the difference between satisfying AASB S2 and actually using it.