Effective business planning for climate adaptation is essential to secure organisational support, prioritise investment, and translate climate risk into meaningful action.

While technical assessments and risk projections are important, the success of an adaptation strategy hinges on the ability to make a compelling business case. This involves not only well-structured documentation but also a strategic approach to navigating internal decision-making processes.

A strong business case goes beyond technical evidence. It combines clear economic framing with a strategic understanding of internal decision-making processes, investment cycles, and stakeholder expectations. In practice, successful adaptation cases are as much about how information is framed and communicated as they are about the risks themselves.

A well developed business case for adaptation typically leverages:

• timely reference to extreme weather events to create urgency
• local evidence of climate and socio-economic impacts
• integration of adaptation risks into core business strategies.

Developing such cases often requires early preparation and may benefit from external expertise to design innovative approaches for assessing, valuing, and communicating the benefits of adaptation.

This guide explains the rationale for building a business case, how adaptation cases differ from conventional proposals, and highlights key components and lessons learned from experiences in Australian organisations. It concludes with practical strategies to help organisations develop and progress effective adaptation business cases.

Climate change presents both material risks and strategic opportunities for organisations. Yet, despite increasing climate impacts and the usefulness of developing a business case for adaptation, this approach remains underutilised in Australia.

The World Economic Forum (2024) identifies failure to adapt and mitigate climate change remains among the top five global risks in terms of both impact and likelihood. Similarly, the UNEP Adaptation Gap Report (2023) highlights the growing gap between current adaptation progress and what is required to reduce climate risks, especially in urban and coastal systems.

Adaptation brings long-term benefits, but these are often difficult to quantify. A 2021 update by Deloitte Access Economics estimated that natural disaster costs in Australia could exceed $39 billion annually by 2050, considering both climate impacts and economic exposure. The same analysis found that investment in resilience and adaptation could reduce these costs by at least 50%.

Despite this potential, adaptation efforts still lag behind climate mitigation, which tends to offer more immediate cost-saving incentives (e.g., energy efficiency). Closing this gap requires adaptation to be embedded as a core component of organisational planning, investment, and risk management.

A business case is a structured, evidence based and persuasive argument that supports organisational change, typically presented in a report that demonstrates the need for action, guides decision-making, evaluating options and justifies financial or strategic commitment.

In the context of climate adaptation, a business case aims to:

• strengthen organisational resilience to current and future climate impacts
• integrate risk mitigation into core business operations
• address stakeholder concerns and regulatory expectations.

Unlike traditional business cases, adaptation proposals often deal with long-term, uncertain risks and require justifying action despite delayed or indirect returns.

Furthermore, there is currently no established model for developing adaptation-specific business cases, making this a relatively novel process.

Adaptation business cases differ from traditional proposals in several important ways. They:

• address long-term, uncertain risks rather than short-term opportunities
• often rely on avoided costs and risk reduction rather than direct revenue generation
• must justify early investment despite benefits that may only materialise over decades.

There is currently no single, standardised model for developing adaptation-specific business cases. As a result, organisations are often required to innovate by adapting existing business case frameworks to account for uncertainty, long timeframes, and non-market benefits.

A study by Hales et al. (2016) examined adaptation planning in ten coastal organisations in four sectors: local government, tourism, finance, and property.

Key insights include:

• Climate change is primarily perceived as a risk that translates into economic costs; financial impact is the motivation behind framing the business case for climate change adaptation as a risk management strategy in most organisations.
• The business case for climate change adaptation must be integrated into overall business decision frameworks to be successful.
• Successful business cases develop shared values for adaptation with stakeholders and formulate the benefits of adaptation to the wider community.
• Successful business cases develop innovative ways, and collaborative approaches, to formulate and obtain buy-in.
• A strong business case for climate change adaptation is usually associated with the presence of sustainability systems and practices in an organisation.
• Leadership from within the organisation and external to the organisation is important to progress the business case through the organisation’s decision-making process.
• Leaders and managers responsible for climate change adaptation need to have a long-term commitment in order to seize opportunities and initiate a proposal. Long-term commitment is also important in the implementation of the business case because of the inherent long-term nature of climate change.

1. Start early

• Incorporate adaptation in initial planning stages so it becomes business as usual.
• Link adaptation with existing sustainability, mitigation, risk management, and asset planning programs.

Example phrases

• “Climate adaptation considerations have been embedded into early project scoping and strategic planning to ensure risks are addressed proactively rather than retrospectively.”
• “This proposal aligns with existing sustainability, risk, and asset management frameworks and does not introduce a parallel planning process.”

2. Define the problem in operational terms

Frame climate change as a business risk, not an abstract issue, for example:

• service disruption or loss of continuity
• asset failure or reduced asset life
• escalating maintenance, repair, and recovery costs
• increasing insurance costs or liability exposure

Example phrases

• “Under projected climate conditions, the organisation faces increasing risk of service disruption due to heat, flooding, and extreme weather events.”
• “Climate impacts are expected to accelerate asset degradation, increasing maintenance and replacement costs over the asset lifecycle.”
• “Insurance premiums and exposure to liability are anticipated to rise as climate risks increase.”

3. Explicitly link the problem to existing corporate frameworks

• Corporate risk registers
• Asset management plans and lifecycle strategies
• Local government community strategic plans and IP&R frameworks
• State or regional resilience, infrastructure, or emergency management priorities.

Example phrases

• “Climate risks addressed in this business case are consistent with risks identified in the corporate risk register.”
• “The proposal supports priorities outlined in the Asset Management Plan by reducing long‑term exposure to climate‑related asset failure.”
• “This investment aligns with council’s Community Strategic Plan goal of maintaining reliable services under changing climate conditions.”

4. Establish a clear base case ('do nothing' scenario)

• Describe what happens if no additional adaptation action is taken.
• Identify how risks, costs, and service impacts are expected to increase over time.

Example phrases

• “Under a ‘do nothing’ scenario, exposure to climate risks is expected to increase, resulting in higher operating and recovery costs.”
• “Failure to act will likely lead to more frequent service interruptions and unplanned capital expenditure.”

5. Take a staged approach

• Break the business case and implementation into manageable phases.
• Use adaptive pathways to allow decisions to be adjusted as risks and evidence evolve.

Example phrases

• “The proposed approach adopts a staged investment pathway to manage uncertainty and allow for future decision points.”
• “Early actions focus on low‑regret measures while maintaining flexibility for future adaptation responses.”

6. Present tailored, decision‑relevant information

• Focus on organisation‑specific risks, assets, services, and financial exposure.
• Avoid overwhelming decision‑makers with generic or unnecessary data.

Example phrases

• “Analysis focuses on climate risks most relevant to the organisation’s assets, services, and financial exposure.”
• “Only information directly relevant to investment decisions has been included.”

7. Engage expert support where it adds value

• Collaborate with specialists (e.g. GIS, engineering, economics, communication) and researchers to:
  • translate climate risk into operational and financial impacts
  • quantify avoided costs where possible
  • visualise risks and adaptation options

Example phrases

• “Specialist expertise has been engaged to translate climate projections into asset‑level and service‑level impacts.”
• “External analysis supports robust estimation of avoided costs and investment benefits.”

8. Highlight co‑benefits and value for money

• Identify benefits beyond risk reduction, such as:
  • community health and safety
  • service reliability
  • economic and organisational resilience

Example phrases

• “In addition to reducing climate risk, the proposed actions deliver co‑benefits including improved service reliability and community safety.”
• “These co‑benefits contribute to overall value for money and alignment with organisational objectives.”

9. Identify and manage risk explicitly

• Identify residual risks if adaptation is delayed.
• Identify risks of maladaptation and how these will be managed.
• Align risks and treatments with corporate and project risk registers.

Example phrases

• “Residual risks associated with delayed implementation have been identified and assessed.”
• “Potential maladaptation risks have been considered and mitigation measures incorporated.”
• “All risks and treatments are consistent with existing risk management frameworks.”

10. Use windows of opportunity

• Progress business cases following extreme weather events when awareness is heightened.
• Position proposals as accelerating planned risk responses, not reactive spending.
• Have draft business cases prepared for the right opportunity such a new government grant or program

Example phrases

• “Recent extreme weather events have highlighted the consequences of inaction and reinforce the need to progress planned adaptation measures.”
• “This proposal accelerates previously identified risk responses rather than introducing reactive or unplanned expenditure.”

11. Communicate clearly and visually

• Use maps, infographics, scenarios, or models to personalise risks and options.
• Focus visuals on decision‑relevant impacts, not climate science alone.

Example phrases

• “Risk maps and scenarios are used to clearly demonstrate the exposure of key assets and services.”
• “Visual material is designed to support informed decision‑making rather than detailed climate modelling.”

12. Ensure clear accountability and governance

• Clearly define ownership for adaptation decisions, delivery, and oversight.
• Align accountability with existing governance structures rather than creating new ones.
• Ensure roles and decision points are clear over the full lifecycle of the adaptation actions.

Example phrases

• “Clear accountabilities for climate adaptation have been assigned across strategic, operational, and risk management functions.”
• “Responsibility for delivery sits with existing asset and service owners, supported by established governance arrangements.”

Below are the key elements of a climate adaptation business case in the table below.

Organisations, communities, and governments across Australia are already experiencing the effects of extreme weather events. These events often provide a critical catalyst for action. While reactive responses dominate current adaptation business cases, there is a clear need to transition toward more proactive and preventative planning.

Communicating the long-term cost-effectiveness of adaptation, particularly in comparison to recovery expenses, remains a challenge. Nevertheless, framing climate change adaptation not just as risk management but also as a strategic opportunity could unlock far greater investment and commitment.