July 1, 2026

Episode 28: Darren Clifford (Adapt [us] Capital) - The Case for Climate Adaptation

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Episode summary

Darren Clifford, Co-Founder of Adapt [us] Capital, discusses the investment case for climate adaptation on Episode 28 of Scaling Green Tech, a podcast by Adopter.

Clifford argues that adaptation is more underfunded than mitigation, with roughly 0.25% of global capital flowing to it, despite demand for adaptation products rising predictably as the weather gets hotter and more volatile. Adapt [us] Capital backs pre-seed companies that meet three tests at once: a venture-grade team and market, demand driven by changing weather, and a measurable improvement to quality of life. He uses portfolio company Temperate, a passive radiative cooling business, to illustrate the thesis, alongside Bactery, which builds soil-based batteries for resilient backup power. Clifford frames the whole portfolio as a hedge against a future where changing climate could erode between 5% and 25% of global GDP by 2050.

This episode is relevant for climate adaptation investors, pre-seed and seed-stage climate founders, family offices and high net worth LPs evaluating adaptation funds, and operators working on go-to-market for hardware and deep tech in new geographies.

Guest profile

Darren Clifford is the Co-Founder of Adapt [us] Capital. He spent a decade at McKinsey, where he was part of its Green Business Building practice, and has more than 15 years scaling businesses as a founder, investor, and venture builder. A four-time exited founder, he combines strategic and operating experience with a focus on how adaptation demand differs across markets, drawing on travels through more than a hundred countries.

Adapt [us] Capital is an early-stage, AI-enabled venture fund and builder backing companies designed to thrive in a 2.5°C+ world. Its investment thesis is centred on products which increase in demand as the weather gets hotter and more volatile. The fund invests from pre-seed to Series A across North America and Europe. Portfolio companies include Temperate (passive radiative cooling) and Bactery (soil-based batteries).

Explore the Adapt [us] Capital website.  

Find Darren Clifford on LinkedIn.

Key takeaways

  • Around 0.25% of all global funding flows to adaptation, a figure that has to cover everything from multi-billion-dollar seawalls to early-stage innovation capital.
  • Adapt [us] Capital applies three criteria before investing: the standard venture tests of team, market, margin and moat; demand that rises as the weather gets hotter and more volatile; and a clear improvement to quality of life for humanity.
  • Most adaptation technologies fail commercially because they require selling a loss-avoidance business case, and a buyer will often decline a 10-to-1 return if the upfront cost damages quarterly profit and personal bonuses.
  • Clifford cites Carta data suggesting it now takes around 11.5 years to build a business to exit, so adaptation investors should price where exits will be in a decade rather than where returns sit today.
  • Adapt [us] analysed over 50,000 startups through its in-house AI tool, the Adapt [us] engine, which is trained on the fund's thesis and investment memos to sharpen scoring over time.
  • Clifford argues a "one in 100 year flood" has in practice become closer to a one in 10 year event, and the gap between perceived and actual risk is why insurance and voluntary behaviour change have failed to drive adaptation.
  • Adapt [us] deliberately avoids companies with high public policy risk, instead targeting products bought out of clear consumer self-interest, because short-term shifts in government policy are seen as too unpredictable to underwrite.

topics covered

  • Explaining Adapt [us] Capital's thesis
  • The three investment criteria: venture fundamentals, weather-driven demand, quality of life
  • Temperate and passive radiative cooling as a portfolio example
  • Why adaptation receives only 0.25% of global capital
  • The marshmallow test and short-term versus long-term climate risk
  • Why AI valuations may be a bubble and what delivers returns over a decade
  • Balancing returns and impact when raising from LPs
  • The adaptation portfolio as a hedge against GDP loss
  • Policy risk and why Adapt [us] avoids policy-dependent companies
  • Perceived versus actual climate risk and the insurance gap
  • Individual versus social impact and the role of catalytic capital and government
  • The Adapt [us] engine and AI-enabled deal sourcing
  • The venture builder model and weekly founder support
  • Building an ecosystem through LinkedIn content

About Scaling Green-Tech

Scaling Green-Tech by Adopter is a podcast for people shaping the future of climate technology - founders, investors, and ecosystem leaders at the forefront of adaptation and resilience solutions. As part of Adopter’s mission to accelerate the adoption of high-impact climate innovation, the podcast aims to amplify real voices and practical insights that can help others navigate the startup journey. These conversations go beyond the hype to bring real, unfiltered stories - the wins, the roadblocks and everything you need to know in between.

Read the full transcript here
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