The Modern Sustainability Playbook — By Cat Yeldi
Talk Is Cheap. Systems Compound.
Move beyond sustainability evangelism and into operational discipline with the Five Stacks Framework.
Join the WaitlistFor decades, sustainability has been treated as a narrative — a story about being “virtuous” that costs money but yields little more than a glossy report.
Treat it as a cost. Hire a consultant. File the report. Check the box. Resent the expense.
Use it as a lens. Find the margin leaks. Capture the wasted value. Build the resilience. Let the compliance come as a byproduct of better operations.
This is Option B.
Each stack delivers value independently. Each stack amplifies the returns of the next. Follow the sequence and each investment funds the next.
“If it can’t be measured, it can’t be defended.”
Baseline your operational data. Build your source of truth that survives audits, buyer scrutiny, and board questions.
“Fix leaks before adding initiatives.”
Your baseline showed you where the money is going. Now you stop it from leaving. The first stack that directly hits your profit margin.
“What you discard is lost margin.”
Turn waste into value. Every euro you recover from waste is pure profit improvement.
“Systems must absorb shocks without breaking.”
Build adaptive capacity. Don’t just survive disruption — gain from it.
“Build systems that improve as they operate.”
The moat that widens every year. Your business doesn’t just sustain — it gets more efficient and more profitable with every cycle.
No efficiency without data. No resilience without margin. Each stack earns the next.
Start where you are. Each layer adds value on its own. Together they compound.
Adapts to your size, sector, and priorities. Works for 10 people or 10,000.
If it doesn’t improve your bottom line, it’s not in our framework. Full stop.
You know sustainability is coming but you want it to pay for itself.
You’re looking for margin improvements, not compliance checklists.
You’re tired of sustainability theater and want something that actually works.
If you’re looking for someone to tell you to save the planet, we’re not your people.
If you’re looking for a system that makes your business stronger — keep reading.
The Modern Sustainability Playbook — the complete guide to the Five Stacks Framework. Join the waitlist to get it first.
No spam. Just the book when it’s ready, and the occasional update worth reading.