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Artwork for AJ Climate Champions

AJ Climate Champions

Architects’ Journal
Sustainability
Retrofit
Hastings Commons
IFDU
Community Land Trust
Climate Emergency
UK Housing Crisis
Circular Economy
Sustainable Design
Grand 1924 Observer Building
Urban Regeneration
Community Development
Embodied Carbon
Affordable Housing
Local Manufacturing
Sustainable Architecture
Concrete
Bristol
Building Materials Reuse
Net Zero

Brought to you by the Architects’ Journal. AJ sustainability editor Hattie Hartman and co-host Joe Jack Williams talk to changemakers and innovators who are transforming architecture by designing in ways that respect planetary boundaries. Nominated for Audio Content of the Year at the PPA Awards 2025.Show notes & more info here: www.architectsjournal.co.uk/podcasts

PublishesTwice monthlyEpisodes62Founded5 years ago
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Artwork for AJ Climate Champions

Latest Episodes

Episode 60. AJ Climate Champions with Hattie Hartman and Joe Jack Williams.

In this episode, we take a deep dive into building with timber. Haggart shares numerous tips for practices just getting started. Early engagement with the supply chain and g... more

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Episode 59. AJ Climate Champions with Hattie Hartman and Joe Jack Williams.

On the eve of Cop30 in Brazil, Built by Nature European Networks Lead and ACAN co-founder Joe Giddings talks to the AJ about how to build responsibly with timber.

Giddings ... more

YouTube

Episode 58. AJ Climate Champions with Hattie Hartman and Rachael Owens.

Material Cultures co-founder Summer Islam explains how a regional ‘materials matrix’ informs the design process.

‘We imagine the future, rather than working within the present,... more

YouTube

Episode 57. AJ Climate Champions with Hattie Hartman and Rachael Owens.

Melissa Mean from community land trust WeCanMake explains how a community-led approach in Bristol is tackling the housing crisis.

‘What if the power and resources to make good ... more

YouTube

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Recent Guests

Kirsten Haggart
Associate Director and Head of Research at Waugh Thistleton Architects
Waugh Thistleton Architects
Episode: Kirsten Haggart: Building with timber has reached a ‘tipping point’
Joe Giddings
European Networks Lead at Built by Nature
Built by Nature
Episode: Joe Giddings on the ‘mind-blowing’ growth of bio-based materials in Europe
Summer Islam
Founding director of Material Cultures, a design and research consultancy
Material Cultures
Episode: Material Cultures' Summer Islam: ‘We start with a map of nearby materials and products’
Melissa Mean
Community organizer and advocate for innovative housing solutions
WeCanMake
Episode: ‘Retrofit is seen as really alienating. We’re trying to blow that apart’
Thom Brisco
Co-founder of Brisco Loran, an architectural practice
Brisco Loran
Episode: ‘Even a small practice can push the boundaries of reuse’ – Brisco Loran
Sarah Castle
Director at IFDU, known for inclusive architectural projects
IFDU
Episode: IF_DO’s Sarah Castle: ‘People become the project’
Maria-Chiara Piccinelli
Associate director at David Chipperfield Architects
David Chipperfield Architects
Episode: Chipperfield’s MC Piccinelli on how retrofit can enhance creativity
Nicolas Coekelsbergs
Co-founder of BC Materials, focusing on sustainable building practices using earthen materials
BC Materials
Episode: Why earth is the ultimate circular material
Vinu Daniel
Indian architect, founder of Wallmakers, and speaker on sustainable architecture
Wallmakers
Episode: Vinu Daniel on transforming mud and waste into architecture

Hosts

Hattie Hartman
Sustainability Editor at Architects' Journal
Rachael Owens
Co-director at the National Retrofit Hub and Head of Sustainability at Buckley Gray Yeoman

Reviews

4.9 out of 5 stars from 79 ratings
  • When are you going to talk about future energy?

    It would be nice to balance your podcasts with architects who create fission and fusion. We exist you know and we could save the planet as everything needs energy, especially AI.

    Apple Podcasts
    3
    A Broke Architect
    United Kingdom2 months ago
  • Pure Gold

    I am not even an architect, but I strongly recommend subscribing. It almost never fails to deliver authentic voices and fresh perspectives on climate friendly architecture.

    Apple Podcasts
    5
    Tobrabra
    Germany4 years ago
  • Great podcast

    Really big thanks you for these. We listen to a few of these as CPDs in our practice. Keep them coming

    Apple Podcasts
    5
    neilb243
    United Kingdom4 years ago
  • Stuff that matters today & tomorrow

    I’m not an architect but this is intensely interesting. It tells me about topics that matter now and in the future with respect to the environment in general e.g. natural landscape, energy use etc.. It’s not about aesthetic look of so called ideal example buildings.

    Apple Podcasts
    5
    Seastuart
    United Kingdom4 years ago
  • Vital information

    This is a well curated and produced series of shows with illuminating in depth discussions with leading practitioners in architecture and the wider built environment sector finishin focusing on taking action to tackle climate change.

    Apple Podcasts
    5
    Valley monitor
    United Kingdom4 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Many reviews highlight the relevance of the topics covered, particularly in relation to current environmental challenges.
The discussions are regarded as engaging and inspiring, appealing even to those outside the architectural field.
Listeners find the content authentic and insightful, often praising its emphasis on sustainable architecture.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Apple Podcasts
#21
United Kingdom/Arts/Design
Apple Podcasts
#208
Canada/Arts/Design
Apple Podcasts
#72
Australia/Arts/Design
Apple Podcasts
#19
Ireland/Arts/Design
Apple Podcasts
#55
Denmark/Arts/Design
Apple Podcasts
#59
New Zealand/Arts/Design

Talking Points

Recent interactions between the hosts and their guests.

Kirsten Haggart: Building with timber has reached a ‘tipping point’
Q: What's your advice to practices that are just getting started on this journey?
It is essential to inform yourself about the material and engage with suppliers early in the design process.
Joe Giddings on the ‘mind-blowing’ growth of bio-based materials in Europe
Q: How are the principles getting on? Are you getting a lot of traction?
Giddings explains that they have gathered endorsements from around 280 organizations and are planning to promote the principles at COP 30.
Joe Giddings on the ‘mind-blowing’ growth of bio-based materials in Europe
Q: Can you tell us about some of the research Built by Nature is undertaking now, particularly in relation to the principles?
Giddings details how Built by Nature is conducting various pieces of research connected to the principles, including projects focused on carbon stored in timber and protocols for certifying that carbon.
Material Cultures' Summer Islam: ‘We start with a map of nearby materials and products’
Q: Can you share a little bit about your observations of how the system is different in terms of academia and training architects?
Summer highlighted the high quality of education at ETH, indicating a stark contrast with the UK where architectural services are not valued to the same extent.
Material Cultures' Summer Islam: ‘We start with a map of nearby materials and products’
Q: Why did you get fed up working in mainstream practice and what led you to set up Material Cultures?
Summer expressed that while she wasn't necessarily fed up, she felt a strong desire to work in a different way and have a more direct relationship with the process of building.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

Listeners per Episode
Gender Skew
Location
Interests
Professions
Age Range
Household Income
Social Media Reach

Frequently Asked Questions About AJ Climate Champions

What is AJ Climate Champions about and what kind of topics does it cover?

Focusing on the intersection of architecture, sustainability, and community, this podcast engages with influential figures who are reshaping the built environment in a manner that respects ecological boundaries. Episodes cover a broad spectrum of topics, including innovative use of biobased materials, community-led housing solutions, and the importance of integrating sustainability into architectural practices. A key highlight includes discussions on the adaptation of existing structures rather than large-scale new developments, reflecting a commitment to tackling the pressing housing crisis and climate emergency. The insightful interviews are curated to inspire both professionals in the industry and a wider audience interested in sustainab... more

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Which podcasts are similar to AJ Climate Champions?

These podcasts share a similar audience with AJ Climate Champions:

1. Scaffold
2. The Urbanist
3. Page 94: The Private Eye Podcast
4. The Rest Is Politics
5. Radical with Amol Rajan

How many episodes of AJ Climate Champions are there?

AJ Climate Champions launched 5 years ago and published 62 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on AJ Climate Champions?

Recent guests on AJ Climate Champions include:

1. Kirsten Haggart
2. Joe Giddings
3. Summer Islam
4. Melissa Mean
5. Thom Brisco
6. Sarah Castle
7. Maria-Chiara Piccinelli
8. Nicolas Coekelsbergs

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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