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: 50

Industrial Hemp Podcast
Podcast Episodes
Hemp Grain for Fuel: Wendy Mosher of New West Genetics [not-audio_url] [/not-audio_url]

Duration: 31:35
New West Genetics has been focused on crop improvement in the hemp industry since 2014. In July of 2021, the Lancaster Farming National Hemp Tour paid a visit to the New West headquarters in Fort Collins, Colorado, where…
Melissa Nelson of South Bend Industrial Hemp on Five Years of Growth [not-audio_url] [/not-audio_url]

Duration: 30:48
This week on the Hemp Show, we're revisiting some of the folks we met during our National Hemp Tour of 2021. Five years ago this summer the Industrial Hemp Podcast hit the road to map the industry as it was then. Hemp fa…
Hemp on the Hill and the Silver Screen [not-audio_url] [/not-audio_url]

Duration: 35:47
This week's Hemp Podcast is divided into two parts. First, we take a look at the recent changes in U.S. hemp policy in a conversation with Rachel Umansky-Castro, the agriculture reporter for Bloomberg Government, who has…
Seed to Style: Inside the NIHC Summit with Patrick Atagi [not-audio_url] [/not-audio_url]

Duration: 23:32
This week on the Industrial Hemp Podcast, we talk to Patrick Atagi, president and CEO of the National Industrial Hemp Council, the organization that's hosting the Seed to Style hemp fiber summit in conjunction with the F…
Counting the Blessings of HempWood with Greg Wilson [not-audio_url] [/not-audio_url]

Duration: 30:16
This week on The Hemp Show, we check in with Greg Wilson from Hempwood in Murray, Kentucky where, five years ago, Lancaster Farming's National Hemp Tour made its first stop. A lot has happened with Hempwood since then, a…
The National Hemp Tour 5 Years On [not-audio_url] [/not-audio_url]

Duration: 26:39
This week on the hemp podcast we take a ride in the RV Time Machine. We're going back five years, back to the National Hemp Tour in the summer of 2021, when we took the podcast on the road — and took my family too. We tr…
The Fiber King In-Field Decorticator [not-audio_url] [/not-audio_url]

Duration: 30:34
On this week's show, we catch up with Lancaster County farmer, hemp innovator and cover-crop coach Steve Groff to hear about the progress on two machines that have been years in the making and, he thinks, are finally abo…
Hemp Week in the Hempire State [not-audio_url] [/not-audio_url]

Duration: 26:43
This week on the Hemp Show we're digging into a few of the calendar items we mentioned on last week's show, specifically the run of events in New York state next month. On September 15, Cornell's 10th Annual Grain and Fi…
News Nuggets and Upcoming Hemp Events [not-audio_url] [/not-audio_url]

Duration: 15:11
On this week's Hemp Show we are focusing on recent news stories and upcoming hemp events, including the Farm-to-Fabric Hemp Textile Symposium in New York City, September 18-20. See the full list of events below. Plus a h…
From Field to Foot: Making Hemp Socks in Poland [not-audio_url] [/not-audio_url]

Duration: 39:24
This week's Hemp Show takes us once more back to Poland, where Maciej Kowalski gives us a tour of his vertically integrated hemp textile company in Elbląg, a small town in Northern Poland, not too far from the Baltic Sea…