Stop Bracing — Start Building: The Extreme Weather Playbook That No One Is Giving You

Beyond switching off lights and saving water, here is what organisations and individuals must actually do to survive — and lead — in an age of climate volatility.

The Numbers Are Screaming. Are We Listening?

In 2024, extreme weather inflicted approximately $310 billion in global economic losses — a 6% rise over the previous year and the fifth consecutive year in which insured losses alone crossed $100 billion.¹ The Los Angeles wildfires of January 2025 caused $40 billion in insured losses, making them the costliest wildfire disaster in recorded history.² Switzerland-based reinsurer Swiss Re projects 2025 will rank among the three most expensive years for natural catastrophes globally, at an estimated $220 billion.³

These are not outlier events. They are the new baseline.

Yet what does the mainstream conversation offer in response? Turn off your air conditioner. Carry a reusable bag. Plant a tree. All admirable — none of them sufficient. The advice the world is dispensing is calibrated for mitigation over decades, not for survival and competitive adaptation over the next three years. This article is written for organisations, boards, and individuals who want a different answer: not what causes extreme weather, but what you concretely do when it is already here and escalating.

The Framing We Need to Abandon

Most climate communication is built around one idea: reduce your footprint. It is an important idea, but it conflates risk mitigation (reducing the causes of climate change over the long term) with adaptation (functioning effectively under a climate that has already changed). For a Chief Risk Officer (CRO), a CEO, a board chair, or a head of household, the more urgent and underserved question is: what do we do right now to reduce the impact of events that are already locked in?

PwC and the World Business Council for Sustainable Development (WBCSD) published guidance in 2025 warning that physical climate risks could make the global economy nearly 7% smaller by 2035 than it would otherwise be.⁴ Separately, 60% of businesses surveyed anticipated increased costs from extreme weather and supply chain disruption within the next twelve months alone. These are not abstract risks. They are balance sheet risks, workforce risks, and governance risks.

The playbook that follows is organised into two tiers: what organisations must do, and what individuals must do — actionable, specific, and grounded in what the evidence shows actually works.

What Organisations Must Do

1.Treat Extreme Weather as an Operational Risk Category, Not a CSR Footnote

The first and most critical shift is structural. Extreme weather risk belongs in the enterprise risk register — with probability assessments, financial exposure estimates, and board-level ownership — not in the sustainability report. The Task Force on Climate-related Financial Disclosures (TCFD) framework classifies physical risks from climate change into acute (event-driven, such as floods and cyclones) and chronic (long-term, such as heat stress and shifting rainfall patterns). Organisations that have not yet mapped their acute and chronic physical risk exposures have a business risk and a material governance gap.

This is not regulatory window-dressing. Internal audit functions should be stress-testing business continuity and crisis management plans against scenario-specific extreme weather events — floods at a key warehouse, heatwaves affecting labour productivity at a manufacturing site, droughts disrupting raw material supply. The Chartered Institute of Internal Auditors explicitly recommends boards harness internal audit to independently evaluate the effectiveness of supply chain resilience under climate-related disruptions.

2. Climate-Proof the Supply Chain — All Tiers, Not Just Tier 1

According to supply chain resilience research, 85% of weather-related supply chain disruptions originate below the Tier 1 supplier level. Most organisations have visibility into their immediate suppliers; almost none have mapped climate exposure at Tier 2 and Tier 3. This is where fragility lives.

The remedy is three-part. First, conduct a geographic climate risk overlay — using GIS mapping to superimpose flood zones, heat corridors, and drought-sensitive agricultural regions across your full supplier network. Second, diversify supplier relationships so no single climate-vulnerable region controls a critical input. Third, require business continuity plans and response-time Service Level Agreement (SLAs) in supplier contracts, and run joint climate-disruption simulation exercises at least twice annually. Walmart’s hurricane preparedness model — a centralised operations centre that automatically triggers pre-positioning of goods when weather systems develop — is the gold standard. During Hurricane Sandy, Walmart rerouted hundreds of truckloads days in advance and maintained stock in over 900 stores.⁵

3. Invest in Parametric Insurance — Not Just Traditional Coverage

Traditional insurance responds to damage after it occurs. But extreme weather is an organisational risk that increasingly imposes costs before the event: cancelled logistics, closed facilities, rerouted staff, halted construction — all triggered by weather warnings even when the forecast does not fully materialise. Willis, in collaboration with Swiss Re Corporate Solutions, launched a landmark parametric insurance policy in 2025 that activates automatically when a red weather warning is issued — not when damage is confirmed. As their coverage architects stated: “the forecast is the event.”

This is a fundamental reimagining of financial protection. Parametric products pay pre-agreed sums based on measurable triggers — wind speed, rainfall levels, temperature thresholds — bypassing the lengthy claims adjustment process. The World Economic Forum reports that the parametric insurance market is projected to reach $34.4 billion by 2033. Organisations in hospitality, logistics, agriculture, and construction should be exploring parametric structures now, not after the next catastrophic season. For Indian organisations operating in monsoon-vulnerable zones, flood-index and rainfall-threshold parametric products are increasingly available through reinsurance channels.

4. Build Nature-Based Solutions Into Physical Infrastructure

Green infrastructure is not garden decoration — it is load-bearing climate engineering. Urban heat islands, which intensify heatwave mortality and energy demand, can be measurably reduced through tree canopy coverage, reflective pavements, and green roofs. Research across 14 cities in 13 countries consistently shows that green infrastructure reduces ambient urban temperatures, lowers runoff during flash floods, and reduces indoor cooling energy demand simultaneously.

Organisations owning or occupying significant physical footprints — factories, campuses, data centres, retail parks — should be commissioning heat and flood risk assessments of their sites and investing in biophilic infrastructure retrofits. These are not soft investments: they reduce energy costs, lower heat-related worker absenteeism, and extend asset life. For boards approving capital expenditure programmes, climate-proofing physical infrastructure should be a mandatory line item, not an optional add-on.

5. Develop a Workforce Extreme Weather Protocol

Heat stress is already one of the fastest-growing threats to labour productivity globally, particularly in South Asia and Sub-Saharan Africa. A 2025 finding from the International Labour Organization estimates that heat stress causes the equivalent of 80 million full-time jobs to be lost globally per year in productivity terms — with the heaviest burden falling on outdoor and construction workers. Organisations must go beyond compliance:

– Establish evidence-based heat action thresholds that modify work schedules, mandate rest periods, and provide cooling facilities before heat warnings reach public emergency levels

– Embed remote and hybrid work activation protocols for extreme weather events that disrupt commutes and infrastructure

– Train line managers in heat illness recognition and emergency response

– Relocate safety-critical roles away from flood-prone campuses on a permanent basis where risk modelling indicates chronic exposure

What Individuals Must Do

6. Conduct a Personal Physical Risk Audit

Before any action, you need to know your exposure. Every individual — especially homeowners and heads of families — should assess three things: what climate hazards are most probable in your geography (flood, cyclone, heat, wildfire risk, drought); what your home’s physical vulnerabilities are (drainage, insulation, structural resilience, energy backup); and what your financial exposure is (insurance cover, savings buffer, alternative shelter). This is not paranoia — it is the same risk identification and risk assessment a CRO conducts for a corporate asset. The National Institute of Standards and Technology (NIST) and Red Cross both offer structured frameworks for family disaster preparedness planning that mirror enterprise continuity planning logic.

7. Build Household Resilience Infrastructure

The single most impactful individual action is not behavioural — it is infrastructural. Consider:

– Energy independence buffers: rooftop solar paired with battery storage provides operational continuity during grid outages triggered by storms or heat-induced demand surges — increasingly common in Indian urban centres

– Water harvesting and storage: a small-scale rainwater harvesting system reduces dependency on municipal supply during drought periods and flood-contamination events

– Structural flood-proofing: door barriers, elevated electrical fittings, and non-return drainage valves cost a fraction of flood restoration — and most households in flood-risk zones have none of them

– Emergency kit: 72-hour supply of food, water, medication, and documents — stored accessibly. Many families find this out too late.

8. Build Your Information Ecosystem — Not Just Your Emergency Kit

Early warning is the single greatest life-safety multiplier in extreme weather. Yet most people rely on passive channels — news alerts arriving after events have already begun. A proactive information architecture includes multiple redundant warning channels (not dependent on internet or grid power), awareness of your local district disaster management authority’s protocols, and pre-established communication plans with family members and neighbours. During the 2023 Libya and Morocco disasters, the devastating loss of life was compounded by a failure of early warning dissemination. For individuals in cyclone-prone coastal zones, monsoon-flood corridors, or heat-vulnerable urban apartments, investing time in understanding warning systems is not optional — it is survival literacy.

The Action Hierarchy

The table below summarises the priority sequence for both organisational and individual actors:

The Governance Imperative

For boards, there is a clear message in all of this: the duty of care now includes climate adaptation. Extreme weather is a foreseeable, quantifiable, and material risk to people, assets, supply chains, and reputations. Organisations that treat it as a sustainability narrative rather than an enterprise risk management priority are operating with an incomplete picture of the threats they govern. The World Economic Forum has urged organisations to make climate adaptation a board-level priority; failure to embed it into strategic decision-making leaves organisations permanently reactive.

The $2 trillion cost of extreme weather over the past decade is not a forecast. It is a measured, documented loss — and the trajectory is unambiguously upward. The organisations and individuals who act now, with intelligence and specificity, will not merely survive the next decade of escalating weather volatility. They will lead it.

Saving water and turning off lights are not wrong. They are simply not enough. The era of incremental environmental gesture is over. The era of climate risk engineering has begun.

The author confirms that this article is original and has not been copied, reproduced, or derived from another author’s work, except for appropriately cited third-party references used for research purposes.

Citations

1) https://www.swissre.com/press-release/Hurricanes-severe-thunderstorms-and-floods-drive-insured-losses-above-USD-100-billion-for-5th-consecutive-year-says-Swiss-Re-Institute/f8424512-e46b-4db7-a1b1-ad6034306352

2) https://www.swissre.com/media/press-release/pr-20250806-wildfires-thunderstorms-global-insured-losses-first-half-2025.html

3) https://www.swissre.com/press-release/Wildfires-storms-floods-contribute-to-record-92-of-global-insured-losses-in-2025-says-Swiss-Re-Institute/7b39b1a5-b878-4a55-a5ff-bf5aa561a675

4)https://www.pwc.com/gx/en/issues/esg/adaptation-planning-for-business.pdf

5) https://www.wired.com/2012/11/sandy-supply-chain-impact/

FAQs

1.How can businesses prepare for extreme weather events? 

Businesses can prepare for extreme weather events in the following manner – 

• Internal audit functions should be stress-testing business continuity and crisis management plans against scenario-specific extreme weather events — floods at a key warehouse, heatwaves affecting labour productivity at a manufacturing site, droughts disrupting raw material supply. The Chartered Institute of Internal Auditors explicitly recommends boards harness internal audit to independently evaluate the effectiveness of supply chain resilience under climate-related disruptions.
• Diversify supplier relationships so no single climate-vulnerable region controls a critical input. 
• Require business continuity plans and response-time SLAs in supplier contracts, and run joint climate-disruption simulation exercises at least twice annually. 
• Organisations in hospitality, logistics, agriculture, and construction should be exploring parametric structures now, not after the next catastrophic season.

2. should climate risk be incorporated into enterprise risk management?

Organisations must incorporate climate risk into enterprise risk management in the following manner – 

1. Treat Extreme Weather as an Operational Risk Category, Not a CSR Footnote – Extreme weather risk belongs in the enterprise risk register — with probability assessments, financial exposure estimates, and board-level ownership — not in the sustainability report. Organisations that have not yet mapped their acute and chronic physical risk exposures have a material governance gap.

• This is not regulatory window-dressing. Internal audit functions should be stress-testing business continuity and crisis management plans against scenario-specific extreme weather events — floods at a key warehouse, heatwaves affecting labour productivity at a manufacturing site, droughts disrupting raw material supply. 

2. Climate-Proof the Supply Chain — All Tiers, Not Just Tier 1 – Organisations should conduct a geographic climate risk overlay — using GIS mapping to superimpose flood zones, heat corridors, and drought-sensitive agricultural regions across the full supplier network. Second, diversify supplier relationships so no single climate-vulnerable region controls a critical input. Third, require business continuity plans and response-time SLAs in supplier contracts, and run joint climate-disruption simulation exercises at least twice annually. 

3. How can companies build climate resilience? 

Extreme weather is a foreseeable, quantifiable, and material risk to people, assets, supply chains, and reputations. Companies can build climate resilience in the following ways – 

1. Treat Extreme Weather as an Operational Risk Category, Not a CSR Footnote –  Internal audit functions should be stress-testing business continuity and crisis management plans against scenario-specific extreme weather events.

2. Climate-Proof the Supply Chain — All Tiers, Not Just Tier 1 – Organisations must conduct a geographic climate risk overlay — using GIS mapping to superimpose flood zones, heat corridors, and drought-sensitive agricultural regions across the full supplier network. Second, diversify supplier relationships so no single climate-vulnerable region controls a critical input. Third, require business continuity plans and response-time SLAs in supplier contracts, and run joint climate-disruption simulation exercises at least twice annually.

3. Invest in Parametric Insurance — Not Just Traditional Coverage – Parametric products pay pre-agreed sums based on measurable triggers — wind speed, rainfall levels, temperature thresholds — bypassing the lengthy claims adjustment process. 

4. Build Nature-Based Solutions Into Physical Infrastructure – Urban heat islands, which intensify heatwave mortality and energy demand, can be measurably reduced through tree canopy coverage, reflective pavements, and green roofs. Organisations owning or occupying significant physical footprints — factories, campuses, data centres, retail parks — should be commissioning heat and flood risk assessments of their sites and investing in biophilic infrastructure retrofits.

5. Develop a Workforce Extreme Weather Protocol – Organisations must go beyond compliance:

• Establish evidence-based heat action thresholds that modify work schedules, mandate rest periods, and provide cooling facilities before heat warnings reach public emergency levels
• Train line managers in heat illness recognition and emergency response
• Relocate safety-critical roles away from flood-prone campuses on a permanent basis where risk modelling indicates chronic exposure