Hemp as an Indicator Species: Mapping the Future of Bio-Based Building

Hemp as an Indicator Species: Mapping the Future of Bio-Based Building

Author: Eric Hurlock, Digital Editor February 19, 2026 Duration: 44:53

This week on the Hemp Show, we widen the lens. Hemp is more than a crop — it's part of a larger material system that connects farms, forests, manufacturers, builders and cities.

Architect and urban researcher Kaja Kühl joins the podcast to explain why she calls hemp and straw "indicator species" — materials that signal the health of a regional building ecosystem. Through her Bio-Based Materials & Construction Resources Map, she has been documenting the farms, processors and builders already working across the Northeast.

In this conversation, we explore what it would take to scale regenerative construction from rural landscapes into dense urban markets — and why regional supply chains may matter more than centralized industrial models.

We discuss:

• Hempcrete as a carbon-storing wall system

• Why moisture regulation and indoor air quality may be hemp's most overlooked strengths

• Straw panel manufacturing and collaborative scaling models

• The advantages — and challenges — of building in a dense Northeastern region

• Housing as long-term carbon storage infrastructure

Kühl also reflects on building two carbon-zero hemp homes in New York's Hudson Valley and what she learned working alongside early-stage material startups.

As federal climate policy shifts, atmospheric carbon does not. If emissions oversight weakens, land-based carbon strategies — including fiber crops like hemp — only grow more consequential.

This episode situates hemp inside a broader conversation about how we build, where materials come from and how regional economies can store carbon in the walls around us.

News Nuggets

Farm Bill / Hemp Language

U.S. House Agriculture Committee – Farm, Food and National Security Act of 2026 (Draft Bill Information)

National Hemp Association – Industry Response & Policy Updates

USDA Hemp Production Program

EPA Endangerment Finding

EPA 2009 Endangerment Finding (Clean Air Act)

Clean Air Act Overview (EPA)

Learn More

You Are the City – Kaja Kühl's Practice

Bio-Based Materials & Construction Resources Map

City College of New York – Architecture

Columbia University GSAPP

Bio-Based Materials Collective

https://biobasedcollective.org

Thanks to our Sponsor

IND HEMP 


There’s a quiet revolution happening in fields and factories, and it’s centered on a single, versatile plant. Industrial Hemp Podcast, guided by Eric Hurlock, the Digital Editor at Lancaster Farming, moves beyond the headlines to explore what’s actually happening on the ground. This isn’t just theoretical discussion; it’s a direct line to the people driving the industry forward. Each episode features conversations with the farmers who are planting and harvesting these crops, facing very real agronomic challenges and opportunities. You’ll also hear from researchers, processors, and policy experts who are shaping the future of hemp for fiber, grain, and other industrial applications. The dialogue digs into the practicalities-from planting techniques and harvesting equipment to market trends, regulatory hurdles, and technological innovations that are changing the game. It’s a clear-eyed look at an agricultural sector finding its footing, reported by journalists with deep roots in farming communities. For anyone curious about the business, science, and sheer hard work behind industrial hemp, this podcast serves as an essential, grounded resource. Tune in for honest talk that cuts through the hype and gets to the root of this growing field.
Author: Language: en-us Episodes: 100

Industrial Hemp Podcast
Podcast Episodes
Can the Goodness of Hemp Act Fix What's Broken in Hemp? [not-audio_url] [/not-audio_url]

Duration: 34:20
This week Morgan Tweet returns to the Hemp Show to talk about the Goodness of Hemp Act, a draft legislation she's confident will set the broader hemp industry on the path toward sensible regulation. She was on the show l…
Meet NHA's New Director Sully Sullivan [not-audio_url] [/not-audio_url]

Duration: 29:05
This week on the Hemp Show we meet Sully Sullivan. He's the new executive director at the National Hemp Association — and what a time to be taking the helm of a hemp association. So much is up in the air right now. What…
Farm to Flow: Trace Femcare and the Future of Hemp Fiber Tampons [not-audio_url] [/not-audio_url]

Duration: 48:18
This week on the Hemp Show, Claire Crunk returns. She is the founder of Trace Femcare, the worlds first hemp fiber tampon. Her first appearance on the podcast was in 2023. Her company was just a few weeks away from their…
Stacking Up with Renewabuild Great Plains [not-audio_url] [/not-audio_url]

Duration: 24:45
This week on the show we talk with Ken Meyer of Complete Hemp Processing in Winfred, South Dakota. As of last week, Meyer is also a co-founder of Renewabuild Great Plains — the first U.S.-licensed manufacturer of structu…
Steve Groff and the Great Wall of Hemp [not-audio_url] [/not-audio_url]

Duration: 38:36
HOLTWOOD, Pa. — This week on the Hemp Podcast we take a short road trip to southern Lancaster County to catch up with farmer Steve Groff. "What we're looking at here, Eric, is a metaphor for the hemp industry. We're look…
Getting From HempToday to Hemp Tomorrow with Kehrt Reyher [not-audio_url] [/not-audio_url]

Duration: 47:01
This week on the Hemp Show, we talk to Kehrt Reyher, CEO and publisher of HempToday, a leading source of global hemp news. An American expat from Indiana who has lived in Poland for more than 30 years, Reyher cut his tee…
Maciej Kowalski: Be Your Own Supply Chain [not-audio_url] [/not-audio_url]

Duration: 41:40
This week on the Hemp Show we talk to Maciej Kowalski, founder and CEO of Kombinat Konopni, a hemp company in Northern Poland. We hear how he built a vertically integrated company — from planting, harvesting, processing,…
Dakota Hemp: Building an Industry in South Dakota [not-audio_url] [/not-audio_url]

Duration: 37:02
This week on the Hemp Show, we're talking to the guys from Dakota Hemp in Wakonda, South Dakota. John Peterson and Karll Lecher are running a HempTrain decortication system, taking in bales from local farmers and turning…
Pushing Progress in the DC Swamp [not-audio_url] [/not-audio_url]

Duration: 46:36
On this week's hemp show, we talk to a couple of hemp policy advocates who recently traveled to the swamps of D.C. in hopes of affecting change. This week we're joined by Geoff Whaling, chair of the National Hemp Associa…