Dec '25 (edited) • Start here
Welcome to Climate Tech Builders
If you joined this community, you’re probably here for one of three reasons:
1. You’re tired of climate conversations that quietly ignore physics.
2. You’re building something in hard-tech and want a place where reality isn’t optional.
3. You’re curious about how decarbonization actually works when you get out of the slide deck and into the mechanical room.
This space isn’t here to impress investors, polish pitch decks, or validate ideas prematurely. It exists so builders, engineers, and founders can pressure-test assumptions against physical limits, economics, and execution reality.
To kick things off:
Introduce yourself with three things:
1. What you're building or learning.
2. The biggest “aha” moment you’ve had so far in climate or engineering.
3. One picture of your workspace, lab, tools, or whatever physical chaos fuels your ideas.
If your workspace is too clean… we may ask questions.
Welcome aboard. Let’s build things worth building.
How to use this community
  • Ask questions with constraints, not just ambition
  • Explain how something works, not how it sounds
  • Disagree with ideas, not people
  • If you want feedback, be specific about what you’re building or deciding
This is probably not the right place if you’re looking for:
  • pitch feedback without technical scrutiny
  • political debate or climate ideology
  • generic startup motivation
  • validation before feasibility
From time to time, I offer paid, one-on-one diagnostics for people deciding whether their technology should become a company. No obligation. No funnel.
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Jaeson Cardiff
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Welcome to Climate Tech Builders
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Climate Tech Founders
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Curious about climate technology?
We help people understand how ideas become real-world solutions, and when it makes sense to build something bigger.
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