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
Hemp Fiber & Grain Field Day at Cornell AgriTech [not-audio_url] [/not-audio_url]

Duration: 1:17:59
On the latest episode of the Hemp Podcast, we take the show on the road once more — this time to Cornell University's Hemp Fiber and Grain Field Day at the Agritech Campus in Geneva, New York. Among the many voices on th…
Seed to Sovereignty: Voices from Lower Sioux [not-audio_url] [/not-audio_url]

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MORTON, Minn. — The Lower Sioux Indian Community celebrated the opening of its new hemp-processing facility with a full day of hemp education and demonstrations on September 5, 2024. This processing plant brings the trib…
Lancaster County Hemp Circuit, Part Two [not-audio_url] [/not-audio_url]

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This week's podcast is Part Two of our Lancaster County Hemp Circuit Coverage. Editor's note: Hey there, it's me Eric. I'm traveling this week to Minnesota for the Field Day at the Lower Sioux Indian Reservation, so in o…
Pennsylvania Hemp Shines Bright in the Spotlight [not-audio_url] [/not-audio_url]

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This week on the Hemp Podcast we bring you Part One of our coverage of the Lancaster County Hemp Circuit, a two-day, four-farm hemp event that shone a bright light on hemp in Pennsylvania and attracted attendees from all…
Lancaster County Hemp Circuit: Four Hemp Farms in One Event [not-audio_url] [/not-audio_url]

Duration: 52:04
On this week's Industrial Hemp Podcast, we talk to the organizers of the Lancaster County Hemp Circuit: Sarah Mitchell, Steve Groff and Alyssa Collins. The circuit, an event centered on growing and processing industrial…
Special Message [not-audio_url] [/not-audio_url]

Duration: 5:51
Hey there. I made a mistake on this week's episode, so if you hear something weird on the show, go back and downloaded it again. I fixed the issue and uploaded the new file. Thanks! -eric
How Will the AAFCO Vote on Hemp Grain Affect the Industry? [not-audio_url] [/not-audio_url]

Duration: 1:27:55
Members of the American Association of Feed Control Officials are scheduled to vote early next month on hemp seed meal as an ingredient for laying hens. Pretty standard stuff, according to the group's executive director,…
Making Progress With Hemp at Horse Progress Days [not-audio_url] [/not-audio_url]

Duration: 41:09
This week on the hemp podcast we saddle up and gallop out to Gordonville, Lancaster County, for Horse Progress Days, a two-day celebration of all things horsepower. Nearly 40,000 people were in attendance July 5-6, mostl…