Champion voices, capital gaps: asset owner-focused notes from LCAW 2026

Beyond the familiar hot-weather jokes and sly symbolism, London Climate Action Week (LCAW) this year revealed something far more telling to me: a growing base of ‘champion voices’ within the asset owner community towards transition finance and climate action. This is a shift that, just three or four years ago, would have seemed early, isolated, and easy to condone.

The maths hasn’t changed fundamentally. The global transition needs over $200trn across the next three decades; it attracted just over $2trn last year. What has changed is that more institutional asset owners now treat the mispricing of physical climate risk, the concentration of capital, and the misfit between fiduciary duty and planetary health as their problems to solve.

NZI Transition and Climate Investment Conference | 22 October | London | Register here

Here are five asset-owner-focused headline reflections from the roundtables and private events I spoke at or attended during LCAW 2026,including NZI’s excellent Climate Solutions Roundtable, with references also to some of the crucial research publications I’ve come across on these themes of late.

1. Overcoming ‘correlated concentration risk’ to bridge the FOAK capital gap
   No climate confluence in the global north is complete without the First-of-a-Kind (FOAK) infrastructure financing gap. Much of the current thinking treats FOAK as an emerging niche asset class between venture and infrastructure. The NZI roundtable asked a harder question: how does this actually play out from an allocator’s seat? The answer, increasingly, is correlated concentration risk in energy transition private markets.
   
   S2G’s recent report ‘The Illusion of Crowds’ puts numbers on it – nearly 280 funds raised over $88bn in the last four to five years, yet more than $90bn of climate dry powder sits uninvested next to a $150bn scale-up gap. Capital intensity is not the same thing as commercial maturity. One idea with momentum is a privately managed FOAK finance facility stacking development capital, concessional debt and milestone-based guarantees, so risk layers match the right capital and venture-backed innovations become bankable, repeatable assets. Sensible on paper. It will need specialised structuring, though, to earn a lasting place in asset owners’ private market portfolios.
   
2. Nature finance meets digital infrastructure – powering AI sustainably
   
   A notable undercurrent this year was the convergence between nature finance and digital infrastructure, driven by the resource intensity of AI data centres and hyperscalers. Across sessions on adaptation and resilience, investors and operators kept returning to the physical dependencies of these assets: water for cooling, land, stable ecosystems, flood protection, grid reliability. That reframes nature as enabling infrastructure rather than a peripheral ‘impact sleeve’. Watershed restoration secures cooling water. Urban greening cuts heat stress. Biodiversity-linked land management lowers physical risk to the assets themselves. Nature-based solutions now sit alongside energy procurement in hyperscalers’ core resilience strategies
   
   This helps explain why nature investing has moved so quickly from niche biodiversity funds to institutional mandates over the past two to three years. The appeal for asset owners is the dual role: more resilient real assets (data centres included) plus new return streams through carbon, water and ecosystem services markets. Early examples are visible, from water stewardship partnerships in stressed regions hosting large data centre clusters to reforestation and soil projects tied to corporate Scope 3 strategies. The hard part, as echoed at LCAW 2026, is execution: standardised metrics, aligned incentives between digital and natural asset owners, and ‘nature-positive’ claims that actually show up in resilience and financial performance.
   
3. Strengthening the UK’s climate finance leadership – a call for greater risk appetite
   
   The UK needs roughly £50bn a year in low-carbon investment to stay on track for net zero. Current flows are well short. The newly established £7.3bn National Wealth Fund (NWF), alongside expanded mandates for the British Business Bank and others, signals clear intent, but the leverage and ‘patient capital’ required are of a different order. Public balance sheets need to work much harder, and UK banks and insurers need a stronger push to take on deliberate transition risk.
   
   Germany’s KfW is a compelling benchmark, as covered in this remarkable analysis. With a balance sheet above €500bn, it shows how a state-backed institution can use guarantees, concessional finance and programmatic lending to crowd in private capital at scale. Enabling the NWF to borrow against explicit government guarantees and deploy performance-linked de-risking instruments could do something similar here, particularly in pulling Local Government Pension Schemes into the FOAK and early-stage transition risks that remain underfunded today.
   
4. Scaling ‘climate solutions’ beyond the buzzword – from taxonomy to capital allocation
   
   Thanks to Prime Coalition and ILPA, I attended the LCAW launch of their report ‘Allocator Guide to Climate Solutions’, and noted a subtle but important shift: ‘climate solutions’ is becoming an investable discipline, not just a narrative. Senior Sustainable Investment Leads from CalSTRS, QIC and others made the same point. This is less about thematic exposure and more about intentionality (as I’ve also written in earlier years): anchoring investments to defined climate outcomes across mitigation, adaptation and resilience, and embedding them in governance, mandates and diligence.
   
   That matches the GIIN’s framing of climate solutions as investments delivering measurable, real-economy climate outcomes alongside financial returns, rather than simply backing ‘green’ sectors. In practice it means translating high-level climate goals into a clear investment universe, a theory of change, and outcomes that can be measured across the lifecycle.
   
   Why the traction now? Partly because ‘climate solutions’ travels better than ‘ClimateTech’ across asset classes, time horizons and fiduciary lenses. ClimateTech has been venture-led and technology-centric; climate solutions is perceived as broader, spanning infrastructure, real assets and adaptation while mapping onto emerging taxonomies and disclosure regimes. That makes it more useful for portfolio construction. It also risks becoming another loose label unless backed by rigorous definitions, measurement, mandate design and critical-mass adoption.
   
5. From portfolio construction to intentional stewardship – the next frontier of universal ownership and system-level investing
   Several conversations at LCAW encouraged me that systemic investing is moving from theory to early execution, with a small group of asset owners beginning to operationalise Total Portfolio Approaches (TPA). CPP Investments and CalSTRS are notable examples, integrating climate across the whole portfolio rather than confining it to sleeves, and using flexible capital allocation to back opportunities where long-term system stability and returns align. NZ Super has gone further, linking portfolio strategy to real-world climate and nature outcomes while retaining a strong total-fund lens. The lesson: TPA is less about new capital pools and more about rewiring governance, incentives and decision-making across the institution.
   
   The missing piece is scale beyond market-rate opportunities. Critical themes like regenerative agriculture, resilience finance and circular resource efficiency struggle to attract capital because they fall between public and private mandates, with business models still nascent. The reflexive answer in vogue now is ‘blended finance’ – which alas is too often invoked as a cure-all – forcing to bolt concessional capital onto deals cannot fix weak pipelines, absent business models or misaligned mandates. What’s needed is deeper, earlier integration with philanthropy and public/development finance, enabling new vehicles and shared measurement frameworks that connect portfolio performance to system outcomes. That is what turns universal ownership from a philosophical stance into a coordinated capital deployment strategy.
   
   I remain hopeful of a green future where systemic investing reframes the just transition as a productivity leap and a hedge against systemic portfolio risk, not a thematic side bet.

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