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Turning nature strategy into investment decisions: CapMan Natural Capital’s Theory of Change

Investors who can measure and manage nature-related risks and opportunities are better positioned to protect returns and unlock new revenue streams that range from premiums for timber to carbon and nature credits, and lower-cost green financing.

13/05/2026

Nature is no longer treated as an externality in forestry investing. CapMan Natural Capital’s Theory of Change provides a structured, investment‑driven way to turn nature and biodiversity goals into measurable outcomes and value creation across the portfolio.

WHY: Nature is now an integrated part of investment decision making, not an externality

For forestry investors, nature is directly tied to long-term asset performance. Biodiversity, soil health, and ecosystem resilience directly affect how forests grow, their exposure to nature risks, and what they are ultimately worth.

Investors who can measure and manage these nature-related risks and opportunities are better positioned to protect returns and unlock new revenue streams that range from premiums for timber to carbon and nature credits, and lower-cost green financing.

The challenge is turning this insight into a scalable and portfolio-wide nature strategy. That is exactly what CapMan Natural Capital’s Theory of Change is designed to do, underpinned by CapMan’s Nature Improvement Framework and CapMan’s piloting of Natural Capital Accounting.

WHAT: The three-layer system: from strategy to financial value

1. The Theory of Change: our strategic blueprint

This is the plan that links actions, outcomes, and impact with a coherent logic. It answers several simple but essential questions:

  1. What ultimate impact are we trying to create?
  2. What outcomes do we need to see along the way?
  3. Which inputs and actions will drive those outcomes?
  4. What assumptions and trade-offs are we making?

For example, if our goal is enhanced biodiversity and more resilient forest assets, the Theory of Change is used to clarify the outcomes that matter most, such as improved habitat condition or more diverse tree species, and the needed actions to get us there, along with the costs and operational implications. It is not a separate sustainability document; it is an integrated decision-making guide that helps us make intentional choices about where to invest efforts and capital.

2. The Nature Improvement Framework: putting strategy into practice

The Nature Improvement Framework is where the forest-level work happens. It helps us understand where we are, where we want to go, and how to get there by determining:

  • Baseline assessments: Establishing the current nature conditions at each asset so we know our starting point and can measure real progress over time.
  • Targeted actions: Identifying biodiversity improvements and embedding them into silviculture, harvesting, and regeneration; in other words, the core of forest management.
  • Monitoring, reporting and verification: Tracking outcomes, providing credible evidence of additionality, the proof that our actions create change that would not have happened otherwise.

3. Natural Capital Accounting: translating nature into investment language

This is where nature outcomes connect directly to portfolio decisions. Natural Capital Accounting assigns financial values to nature, enabling us to understand:

  • Which assets should we prioritise?
  • Which actions deliver the best nature gains for the cost?
  • Where do we reduce risk the most?
  • What are the trade-offs between timber yield, costs, and biodiversity outcomes?

In this way, nature and biodiversity metrics can be used as a capital allocation input that is comparable across our portfolio and directly tied to value creation.

HOW: The feedback loop that improves the system over time

What makes this approach powerful is the connection between the layers. Results from the Nature Improvement Framework and insights from Natural Capital Accounting continuously feed back into the Theory of Change, helping us refine our strategy. We continuously ask:

  • Which actions work best in which types of forest?
  • Where are we seeing real, measurable nature and biodiversity progress?
  • What interventions are ready to scale or be adjusted?

This evidence-based cycle means our strategy continuously improves with every new asset where it is deployed.

Measuring what matters

To stay disciplined and accountable, we track three levels of performance across the portfolio:

  • Actions: The types of interventions applied and their implementation rate across assets.
  • Outcomes: Measurable improvements such as increasing amounts of standing and fallen deadwood, retention trees, tree age structure, and broadleaf trees percentage that improve the overall condition of habitats.
  • Impact: Long-term trends in biodiversity performance and forest resilience at portfolio level.

Key takeaways

🔹Nature is a financial variable.
Biodiversity and ecosystem health directly affect growth rates, operating costs, risk profiles, and long-term asset values.

🔹 A structured system makes nature investable.
CapMan Natural Capital connects strategy to action through three layers: the Theory of Change, the Nature Improvement Framework, and Natural Capital Accounting.

🔹 The Theory of Change gives clarity and intentionality.
It defines the link between actions, outcomes, and impact, and helps us make intentional choices and recognise trade-offs.

🔹 The Nature Improvement Framework operationalises biodiversity.
It establishes baselines, embeds actions into normal forestry operations, and provides credible monitoring and verification.

🔹 Natural Capital Accounting translates nature into investment language.
 It helps prioritise actions, compare options, and integrate biodiversity into capital allocation.

🔹 The feedback loop keeps improving the system.
 As results refine the plan and evidence drives decisions, this system becomes more effective over time.