LOOPED IN with Carl Warkentin
LOOPED IN with Carl Warkentin
Podcast Description
The podcast about understanding, building and managing circular business models - this is the place where we dive deep into the future of business, sustainability, and circular economy. After a decade of entrepreneurial experience as a founder and investor, Carl had countless, meaningful behind-the-scenes conversations about how we can reshape industries, close the loop, and create real impact. And now, we want to bring these conversations to you.On Looped In, Carl sits down with entrepreneurs, business owners, venture capitalists, and policymakers who are at the forefront of change. Together, we’ll explore innovative business models, breakthrough technologies, and the regulations shaping the circular economy.
Podcast Insights
Content Themes
The podcast covers various aspects of circular business models, sustainability practices, and innovative technologies. Episodes include discussions such as textile recycling with industry leaders like Luke Henning, and explore the intersections of business practices with regulations shaping the circular economy, while emphasizing the importance of stakeholder collaboration and technology in achieving sustainability.

The podcast about understanding, building and managing circular business models – this is the place where we dive deep into the future of business, sustainability, and circular economy. After a decade of entrepreneurial experience as a founder and investor, Carl had countless, meaningful behind-the-scenes conversations about how we can reshape industries, close the loop, and create real impact. And now, we want to bring these conversations to you.
On Looped In, Carl sits down with entrepreneurs, business owners, venture capitalists, and policymakers who are at the forefront of change. Together, we’ll explore innovative business models, breakthrough technologies, and the regulations shaping the circular economy.
A recycling breakthrough is useless if it never reaches real scale and Syre is betting everything on getting there fast. From Syre’s office in Stockholm, we talk with CEO Dennis about why they chose polyester as the first target, why their mission is “speed and scale,” and why they believe the textile industry needs industrial capacity now, not a decade from now.
We dig into Syre’s unusually customer-driven origin story and how off-take agreements change the rules of the game. Dennis shares how commitments from global brands like H&M, Nike, and Target help unlock project financing for a first-of-its-kind Vietnam facility targeting 150,000 metric tons of circular PET output. We also talk honestly about what makes this hard: chemical-plant ramp-up, purification challenges, and the reality that post-consumer collection and sorting systems still lag behind the demand for recycled polyester.
On the technology and strategy side, Dennis walks through Syre’s glycolysis-based chemical recycling approach, why they prioritize polyester-rich feedstock, and why they shifted toward an orchestration model that partners with best-in-class providers rather than trying to invent every step in-house. We also get into why Vietnam matters for circular textiles, how regulation around textile waste imports can make or break scale, and what a global expansion roadmap could look like as legislation and demand accelerate.
If you care about textile-to-textile recycling, circular economy supply chains, sustainable fashion, and the future of recycled polyester at industrial scale, this conversation will give you a clear view of what it takes to execute. Subscribe, share this with someone building in climate and materials, and leave a review with your biggest question about scaling circular textiles.
Contact Us
This is interactive content – send us your questions to the guests and we record another session just focusing on your questions!
You have suggestions for new guests or want to sponsor the show?
- Contact Carl via LinkedIn
Thanks for listening and keep podcasting!

Disclaimer
This podcast’s information is provided for general reference and was obtained from publicly accessible sources. The Podcast Collaborative neither produces nor verifies the content, accuracy, or suitability of this podcast. Views and opinions belong solely to the podcast creators and guests.
For a complete disclaimer, please see our Full Disclaimer on the archive page. The Podcast Collaborative bears no responsibility for the podcast’s themes, language, or overall content. Listener discretion is advised. Read our Terms of Use and Privacy Policy for more details.