Physical risks arise from the direct impacts of a changing climate; transition risks arise from the shift to a low-carbon economy. The two categories carry different drivers, timelines, and financial signatures, and both now sit inside the disclosure vocabulary set by the NGFS and IFRS S2. Getting the split right determines whether a company's climate disclosures hold up under scrutiny or collapse into vague generalities.
TL;DR:
- Companies must treat physical and transition risks separately because each has distinct drivers, timelines, and metrics affecting their disclosures.
- Acute physical risks like storms and floods cause immediate damage, while chronic risks such as sea-level rise erode value over decades, impacting assets and supply chains.
- Transition risks stem from policies, legal actions, technological shifts, or market changes that can quickly render assets stranded or increase compliance costs.
- Physical and transition risks often interact, with physical events triggering policy responses and prolonged transitions increasing physical vulnerabilities.
- Building joint scenario models that incorporate both risk types allows more accurate disclosures and resilience planning, aligning with IFRS S2 and NGFS requirements.
Table of Contents
- What Is Climate Risk, and Why Split It Into Two Categories?
- What Are Examples of Physical Climate Risk?
- What Does Transition Risk Mean in Practice?
- How Do Physical and Transition Risks Feed Each Other?
- How Do NGFS Scenarios and IFRS S2 Turn Risk Into Disclosure?
- What Are the Practical Steps for Climate Risk Management?
- How Esg Training Institute Builds This Capability
- The One Recommendation Worth Acting On
- Build the Skills This Article Just Described
- Where to Read the Primary Sources
- Sources
- FAQ
What Is Climate Risk, and Why Split It Into Two Categories?
Climate-related financial risk is the exposure a company's assets, revenue, or operations face from a warming planet and the economic response to it. That exposure shows up on balance sheets as impaired property, higher insurance costs, disrupted supply chains, or lost market share, and it shows up on income statements as compliance costs or stranded investments.
Separating physical risk from transition risk isn't an academic exercise. Each category has a distinct driver, a different time horizon, and a different set of metrics attached to it. A flood damages a warehouse today; a carbon tax reshapes a business model over a decade. Conflating the two makes risk registers muddy and disclosures unconvincing to regulators and investors alike.
Reporting frameworks build on this split directly:
- IFRS S2 requires entities to identify both risk types, quantify the percentage of assets exposed, and describe transition plans and key assumptions.
- TCFD, the recommendations IFRS S2 absorbed and extended, established the original physical/transition taxonomy that most global reporting still follows.
- NGFS scenario models translate both categories into projected losses under different policy pathways.
Professionals who separate these streams early save enormous time when it comes to writing the metrics and narratives regulators expect. Readers building that reporting muscle from scratch often benefit from a structured look at how frameworks evolved, including what changed when TCFD moved into ISSB.
What Are Examples of Physical Climate Risk?
Physical risk splits into two families with different rhythms. Acute physical risks are sudden, event-driven shocks: hurricanes, floods, wildfires, heat waves. Chronic physical risks are gradual shifts that erode value over years or decades: sea-level rise, rising average temperatures, changing precipitation patterns, and water scarcity.
Both categories translate into concrete financial damage across the value chain:
- Facilities and real assets — flood damage to a manufacturing plant, wildfire destruction of timber or agricultural land, heat-driven equipment failure.
- Inventory and supply chains — spoiled stock from cold-chain failures, delayed shipments from storm-damaged ports, crop losses reducing raw material availability.
- Transport and logistics — rail and road closures from flooding, shipping route disruption from extreme weather.
- Workforce and productivity — heat stress reducing outdoor labor hours, health impacts increasing absenteeism.
- Insurance and capital costs — rising premiums or outright non-renewability in high-risk zones, and asset impairment when insurers withdraw coverage entirely.
Statistic Callout: Under NGFS Phase V Current Policies scenarios, losses from four acute perils alone exceed 8% of global GDP by 2050, a figure driven by an updated damage function that raised chronic physical-loss estimates well above earlier NGFS phases. Net Zero pathways keep that damage substantially lower, which is the entire point of running scenarios: to show what's avoidable, not to predict a fixed outcome.
Acute events like storms and floods and chronic shifts such as sea-level rise both raise insurance costs and can trigger sudden asset impairment on the books, even when the underlying event unfolds slowly.
What Does Transition Risk Mean in Practice?
Transition risk is the financial exposure created by the economy's shift away from fossil fuels and carbon-intensive processes. The Bank for International Settlements groups the drivers into five categories that reporting teams should treat as a checklist, not a vague theme:
- Policy and regulatory risk — carbon pricing, emissions caps, accelerated building codes, and phase-out mandates that raise compliance costs overnight.
- Legal risk — climate litigation against companies for misrepresenting exposure or failing to act on known risks.
- Technology risk — the pace of EV adoption, battery cost curves, or renewable generation displacing existing asset classes faster than depreciation schedules assume.
- Market risk — shifting customer preference away from carbon-intensive products, changing input costs, and capital reallocation by lenders and investors.
- Reputational risk — brand damage and consumer boycotts tied to perceived climate inaction or greenwashing.
The financial outcomes are concrete rather than abstract. A coal-fired utility facing an accelerated phase-out mandate can see its generation assets stranded years before their expected depreciation ends. An automaker slow to electrify absorbs both falling market share and the compliance cost of tightening emissions standards simultaneously. Litigation risk adds a further layer: legal exposure now attaches to disclosure quality itself, not just to operational emissions.
These drivers transmit through credit, market, and operational channels into the kind of losses banks and insurers already model for other risk types. That's the useful part: transition risk isn't a new category of finance, it's climate variables running through the same pricing mechanics as any other credit or market event.
How Do Physical and Transition Risks Feed Each Other?
Treating physical and transition risk as separate lines on a spreadsheet misses how often one triggers the other. A severe wildfire season can force a government into abrupt policy tightening, converting a physical shock into a transition shock within a single legislative cycle. Conversely, a delayed or disorderly transition leaves more emissions in the atmosphere for longer, which raises the physical exposure a company faces decades later.
The NGFS notes that analyzing these categories separately is useful, but treating them as independent gives a false sense of security. Real losses run through shared macro-financial channels:
- Credit risk — physical damage or stranded assets impair loan collateral and borrower repayment capacity at the same time.
- Market risk — repricing of carbon-intensive assets and physically exposed property can happen in the same market cycle.
- Insurance risk — rising claims from physical events strain the same insurers pricing transition-linked liabilities.
- Operational risk — supply chain disruption from physical events compounds compliance strain from new transition rules.
Pro Tip: Run joint scenario tests that combine a disorderly transition pathway with elevated physical damage assumptions. Testing either variable in isolation understates the tail risk that compound events actually produce.
How Do NGFS Scenarios and IFRS S2 Turn Risk Into Disclosure?
Scenario analysis is a strategic tool, not a forecast. The NGFS is explicit that scenarios are hypothetical constructs built to reveal vulnerabilities, and the organization itself cautions against reading its projected loss figures as predictions of what will actually happen.
NGFS organizes its scenarios into four broad families, each mapping to a different policy trajectory:
| Scenario category | What it assumes | What it reveals |
|---|---|---|
| Orderly | Early, coordinated climate policy action | Lower physical risk, manageable transition costs |
| Disorderly | Delayed policy action followed by a sharp correction | Higher transition risk from abrupt repricing |
| Hot house world | Weak global climate policy overall | Severe long-run physical risk, muted transition risk |
| Too little, too late | Insufficient action followed by late, disruptive tightening | Compound exposure to both risk types |
IFRS S2 sets the disclosure bar that scenario work needs to feed. Entities must:
- Identify which physical and transition risks are relevant to their operations.
- Quantify the percentage of assets or business activities vulnerable to those risks.
- Describe the transition plan and the key assumptions underpinning it.
Practitioners deepening this reporting muscle often start with a comparison of how TCFD's structure carried over into ISSB's requirements.
What Are the Practical Steps for Climate Risk Management?
Converting scenario output into a disclosure-ready report follows a defined sequence, not an open-ended research project.
- Screen assets and value chains for exposure. Prioritize by materiality: high-value physical assets in flood zones or carbon-intensive revenue lines exposed to near-term policy change go first.
- Choose scenarios and models, then estimate exposure ranges. Run at least one orderly and one disorderly NGFS pathway, and state plausible loss bands rather than single-point estimates.
- Produce IFRS S2 metrics and narrative. Report the percentage of assets exposed, the assumptions behind the estimate, and the transition plan dependencies tied to it.
- Build governance and assurance readiness. Assign clear ownership for data quality, document the controls behind each figure, and prepare the file for external assurance before regulators ask for it.
Pro Tip: Don't sum acute and chronic loss estimates without checking for overlap. NGFS's revised damage function raised chronic-loss figures substantially in its Phase V update, and stacking both without adjustment risks double-counting the same exposure.
How Esg Training Institute Builds This Capability
Turning risk categories into IFRS S1/S2-aligned disclosures is a skill, and Esgtraininginstitute maps its courses directly to that standard. Graduates of its programs draw on credentials built around real pass thresholds rather than participation certificates. The Certificate in Climate Risk Management and Mastering IFRS S1 & S2 Sustainability Reporting courses target exactly the gap this article describes.
The One Recommendation Worth Acting On
Stop treating physical and transition risk as parallel checklists. The professionals who get disclosure right build scenario outputs that serve resilience planning and IFRS S2 reporting from the same dataset, because regulators are converging on that expectation faster than most risk teams are adapting to it. Build the joint model once, and both obligations get answered from a single, defensible source of truth.
— Ransford
Build the Skills This Article Just Described
Reading about physical and transition risk gets you halfway. Converting that knowledge into IFRS S2 metrics your assurance team can defend is a different skill, and it's the one Esgtraininginstitute certifies directly rather than teaching in the abstract.
The Certificate in Climate Risk Management walks risk officers through exposure screening and scenario selection at $149 one-off. Reporting leads who need the disclosure side specifically can go straight to Mastering IFRS S1 & S2 Sustainability Reporting at $129 one-off, or cover both plus ongoing updates through the All-Access CPD Pass at $599 per year. Organizations training a full risk or reporting function can also arrange corporate packages, and every course carries CPD recognition backed by the institute's accreditation standing. Enroll in the course that matches where your reporting gap actually sits, and start building the metrics your next disclosure cycle will require.
Where to Read the Primary Sources
- IFRS S2 climate-related disclosures
- NGFS guide to climate scenario analysis for central banks and supervisors
- BIS: climate-related risk drivers and transmission channels
- EPA: climate risks and opportunities defined
Sources
- IFRS S2 climate-related disclosures (official standard text)
- Guide to climate scenario analysis for central banks and supervisors – Update (NGFS)
- Climate-related risk drivers and their transmission channels (BIS)
- Climate Risks and Opportunities Defined (EPA)
FAQ
What Is an Example of a Physical Climate Risk?
A flood damaging a manufacturing facility, a wildfire destroying agricultural land, or a hurricane disrupting a shipping port are all acute physical risks. Chronic examples include sea-level rise slowly reducing the value of coastal property and rising average temperatures cutting outdoor labor productivity, as UKGBC outlines.
What Does Transition Risk Mean?
Transition risk is the financial exposure created by the shift to a lower-carbon economy, driven by policy, legal, technology, market, and reputational changes, according to the EPA's definitions. A carbon tax raising a manufacturer's operating costs is a straightforward example.
What Are the Four Types of Climate Risk Drivers?
Transition risk breaks into four main drivers identified by the BIS: policy and regulatory change, legal risk, technological change, and market and reputational shifts. Each transmits into financial outcomes through credit, market, or operational channels rather than acting in isolation.
Can You Give an Example of a Physical Climate Risk Affecting Finance?
Rising insurance premiums or outright non-renewability in wildfire and flood zones are among the clearest financial examples of physical risk. When insurers withdraw coverage entirely, the underlying asset often faces sudden impairment on the owner's balance sheet, even before any physical damage occurs.
How Does Esgtraininginstitute Help With Climate Risk Reporting?
Esgtraininginstitute offers the Certificate in Climate Risk Management and Mastering IFRS S1 & S2 Sustainability Reporting, both mapped to current disclosure standards.