Uploaded October 2025 | Updated September 2026, 2 weeks ago
In this episode of Climate Confident, I sit down with Johanna Wolfson, co-founder and general partner at Azolla Ventures, to explore how climate tech investing needs to evolve, fast.
Azolla Ventures is doing venture capital differently, using what’s known as catalytic capital - money designed to take on greater risk to fund breakthrough technologies that traditional investors often ignore. Johanna and I unpack how this model can unlock gigaton-scale impact by backing early-stage innovations in carbon removal, shipping decarbonisation, geothermal energy, and bioplastics.
We also talk about the uncomfortable truths in climate finance, from the “returns-first” mindset that still dominates the industry to the urgent need to fund solutions tackling methane and nitrous oxide, two of the most damaging greenhouse gases.
Johanna shares her perspective on the current investment mood, the risks of a “pause” when we have negative time to spare, and why adaptation and resilience technologies are set to become the next big wave of climate innovation.
If you care about where climate capital flows - and what kind of world that creates - this is an episode you won’t want to miss.
🎧 Listen to the full Climate Confident podcast here: climateconfidentpodcast.com
👉 Subscribe for more conversations with the people building a cleaner, fairer, more resilient future.
Timestamps:
00:00 Intro
01:15 What is catalytic capital?
06:45 The Azolla event - and its symbolism
08:00 The state of climate tech investing in 2025
14:00 Sectors falling out of favour - and why that’s a mistake
18:30 Why methane and nitrous oxide are the next big challenge
29:00 The rise of adaptation and resilience tech
36:00 Climate interventions and the road ahead
Keywords: climate tech investing, climate finance, catalytic capital, impact investing, sustainable innovation, venture capital, methane reduction, resilience technology, adaptation and resilience, emissions reduction, gigaton impact, Azolla Ventures, Johanna Wolfson, Climate Confident podcast
In this episode of Climate Confident, I sit down with Johanna Wolfson, co-founder and general partner at Azolla Ventures, to explore how climate tech investing needs to evolve, fast.
Azolla Ventures is doing venture capital differently, using what’s known as catalytic capital - money designed to take on greater risk to fund breakthrough technologies that traditional investors often ignore. Johanna and I unpack how this model can unlock gigaton-scale impact by backing early-stage innovations in carbon removal, shipping decarbonisation, geothermal energy, and bioplastics.
We also talk about the uncomfortable truths in climate finance, from the “returns-first” mindset that still dominates the industry to the urgent need to fund solutions tackling methane and nitrous oxide, two of the most damaging greenhouse gases.
Johanna shares her perspective on the current investment mood, the risks of a “pause” when we have negative time to spare, and why adaptation and resilience technologies are set to become the next big wave of climate innovation.
If you care about where climate capital flows - and what kind of world that creates - this is an episode you won’t want to miss.
🎧 Listen to the full Climate Confident podcast here: climateconfidentpodcast.com
👉 Subscribe for more conversations with the people building a cleaner, fairer, more resilient future.
Timestamps:
00:00 Intro
01:15 What is catalytic capital?
06:45 The Azolla event - and its symbolism
08:00 The state of climate tech investing in 2025
14:00 Sectors falling out of favour - and why that’s a mistake
18:30 Why methane and nitrous oxide are the next big challenge
29:00 The rise of adaptation and resilience tech
36:00 Climate interventions and the road ahead
Keywords: climate tech investing, climate finance, catalytic capital, impact investing, sustainable innovation, venture capital, methane reduction, resilience technology, adaptation and resilience, emissions reduction, gigaton impact, Azolla Ventures, Johanna Wolfson, Climate Confident podcast
![Soil Is Becoming Climate Infrastructure, Finance Is Noticing
Soil is starting to look less like an environmental side issue — and more like infrastructure.
The bigger question is what happens when finance, water risk and farm economics all meet in the same acre.
My guest is Tim Weaver of Holganix, working at the intersection of soil health, regenerative agriculture and measurable environmental outcomes. We look at what healthier soil can mean for fertiliser dependence, water resilience, farm economics, carbon claims and food supply chains.
That matters because regenerative agriculture still carries a stubborn assumption: that farmers must accept years of lower profitability before the benefits arrive. At the same time, companies need more credible evidence around carbon, water and supply-chain resilience — while farmers operate on seasonal cash-flow cycles, not ten-year climate roadmaps.
What changed my thinking was how quickly the conversation moved beyond carbon. Tim argues that better measurement — soil cores, probes, farm equipment data and satellite imagery — is making soil outcomes more credible. But measurement creates another problem: scale. AI may eventually reduce some of that cost, but without enough reliable underlying data it has little to work with.
Then there is water. Tim’s argument is that water retention, runoff and resilience may ultimately matter more to many businesses than carbon alone. When those risks begin touching insurance, cost of capital and food security, soil stops looking like a niche sustainability issue and starts looking more like operating infrastructure.
The other corrective is economic. Tim challenges the idea that regenerative agriculture necessarily requires a five-to-seven-year profitability dip, pointing instead to lower input costs, reduced tillage and stronger farm economics as possible early benefits.
This is not a silver-bullet conversation. It is about measurement, incentives, farmer behaviour and whether regenerative practices can scale on business timelines.
If you work in climate, food, agriculture, sustainable finance, supply chains or investment, this episode offers a sharper way to think about soil as a business and resilience issue.
If you’re working on regenerative agriculture, soil carbon or water risk, I’d be interested in your perspective.
Podcast website: [insert podcast website]
Subscribe to Climate Confident for climate and decarbonisation analysis grounded in real deployment.
CHAPTERS:
00:00 Soil Moneyball Tease
00:41 Welcome And Guest Intro
01:25 What Holganix Does
02:19 Tim’s Path To Soil
04:34 Why Soil Is Surging
05:43 Fertiliser Shock Economics
08:38 What Healthy Soil Changes
09:52 Water Resilience Benefits
12:31 Trust And Carbon Claims
14:37 MRV Methods Explained
17:06 Scaling Measurement With AI
20:23 Adoption And Awareness Gap
24:22 Misconceptions And ROI
26:41 Next Decade Drivers
29:59 Grower Adoption Flywheel
31:54 Lightning Round
33:08 Where To Learn More
34:10 Finance And Soil Future
35:24 Wildcard Champion Pick
36:36 Closing Thoughts And Wrap Soil Is Becoming Climate Infrastructure, Finance Is Noticing](https://i.ytimg.com/vi/mYEo55F1qCM/mqdefault.jpg)




![Grid Decarbonisation at Scale: Can a Whole Country Go Net Zero?
In this episode of Climate Confident, I’m joined by John Sturman, Managing Director at NatPower UK, for a frank and fascinating conversation on the future of grid decarbonisation, battery storage, and the technologies reshaping the global energy landscape.
We cover a lot of ground — from why the UK is leading the charge in battery storage, to how AI will play a central role in managing complex, distributed energy systems. John also sheds light on the huge untapped potential in maritime decarbonisation and explains why reforming grid infrastructure and planning permissions is now critical if we’re serious about hitting net zero.
🔋 Why battery storage is essential to replacing fossil fuels
⚡ The grid bottleneck and how we fix it
🌍 What it really takes to decarbonise a national energy system
🚢 Why ports and shipping are the next big climate challenge
🧠 How AI could bring cheaper, smarter energy to us all
This is one of our most technical deep dives yet — but packed with practical insight, policy perspective, and a solid dose of realism.
💬 Let me know in the comments - what’s your take on grid reform or long-duration storage?
👇 Don’t forget to like, share, and subscribe for more expert insights every week.
🎧 Prefer to listen? Find the Climate Confident Podcast on Spotify, Apple Podcasts, or your favourite platform: [insert podcast link]
🔗 Learn more about NatPower: https://www.natpower.co.uk/
📱 Connect with John on LinkedIn: https://www.linkedin.com/in/john-sturman-a283646/
#climatechange #energytransition #batterystorage #netzero #renewableenergy #cleantech #griddecarbonisation #futureofenergy #AIinEnergy #maritimedecarbonisation Grid Decarbonisation at Scale: Can a Whole Country Go Net Zero?](https://i.ytimg.com/vi/nkX7tWTVQN0/mqdefault.jpg)




