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Artwork for Sustainability Defined

Sustainability Defined

Nethra Rajendran and Cecilia Rios
Sustainability
Climate Change
Chocolate
Carbon Sequestration
Climate Resilience
Plastic Waste
Invasive Species
Lincoln Beach
Environmental Impact
Biodiversity
Sustainable Forestry
Deforestation
Child Labor
Fair Trade
New Orleans
Environmental Justice
Uproot Project
PFAS
Cacao
Residential Real Estate

Sustainability Defined is the podcast that defines sustainability, one concept (and bad joke) at a time. Hosts Scott Breen and Jay Siegel explore a new topic each episode with the help of an expert in the field. Each concept falls into one of seven sectors -- Energy, Cities, Natural Environment, Transportation, Business, Policy, and Social -- and is visually represented in a Sustainability Tree fo... more

PublishesMonthlyEpisodes121Founded10 years ago
Number of ListenersCategories
EducationSociety & Culture

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Artwork for Sustainability Defined

Latest Episodes

We spend a third of our lives on our mattresses, but what's actually in them? In this episode, we dig into the hidden world of the mattress industry: the flame retardants, petroleum-based foams, and PFAS ("forever chemicals") lurking in conventional ... more

Trees do so much more than make our neighborhoods beautiful. In this episode, we explore the surprising science behind why trees are essential for our mental and physical health, our communities, and our climate.

In this episode Cecilia and Nethra ... more

What does clean beauty actually mean and why does the industry still struggle to agree on a definition? In this episode, Nethra and Cecilia sit down with Nour Tayara, co-founder and CEO of Aura Makeup, a vibrant, plastic-free beauty brand born in Mex... more

We are celebrating a major milestone with episode of 100 of Sustainability Defined! Before diving in, we have a special message for all of our incredible Definers who have been a part of this journey. Thank you for listening, learning, and helping us... more

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Recent Guests

Sudheer Kosaraju
Chief Commercial Officer at Once Again Nut Butter
Once Again Nut Butter
Episode: A SPECIAL Ep. 100: Hot Commodities: Peanuts (ft. Once Again)
Abe Eshkenazi
CEO of the Association for Supply Chain Management (ASCM)
ASCM
Episode: Ep. 99: Sustainability & Supply Chains (Ft. The Association for Supply Chain Management)
Amanda Archilla
Executive Director of Fair Trade America
Fair Trade America
Episode: Ep. 98: Hot Commodities: Sugar (ft. Fairtrade America)
Jennie Coleman
President of Equifruit and advocate for ethical sourcing
Equifruit
Episode: Ep. 96: Hot Commodities: Bananas (ft. Equifruit)
Marcy Twete
Founder and CEO of Veerless, advising corporations on ESG risks
Veerless
Episode: Ep 95: The State of ESG in 2026
Nivi Achanta
Founder of the Soapbox Project, focused on joyful climate community engagement.
Soapbox Project
Episode: Ep 93: Sustainability at the Thanksgiving Table - Joy, Burnout, and Hope (ft. Soapbox Project)
Nick Valenzia
Co-founder of Leafr and sustainability expert
Leafr
Episode: Atypical Ep. 11: The Green Skills Gap (ft. Leafr)
Michael Ham
Co-founder of Wild Orchard Tea, focusing on regenerative agriculture
Wild Orchard Tea
Episode: Ep 92: Hot Commodities: Matcha (ft. Wild Orchard Tea)
Susan Scow
Sustainability specialist at Eileen Fisher
Eileen Fisher
Episode: Episode from Source of Good Podcast: "From Farm to Closet: The Icon Coat by Eileen Fisher"

Hosts

Cecilia
Co-host of Sustainability Defined; engaging interlocutor
Nethra
Host of Sustainability Defined; engaging moderator

Reviews

4.9 out of 5 stars from 466 ratings
  • real and approachable

    Loved how the episode 'Sustainability at the Thanksgiving Table - Joy, Burnout, and Hope' brings sustainability into something as familiar as the Thanksgiving table, making it feel more real and approachable. The honest conversation around eco-guilt, burnout, and hope really stood out without feeling overwhelming. Really enjoyed listening to this and how it ties climate action back to everyday life and community.

    Apple Podcasts
    5
    Mary Burruss
    United States4 months ago
  • Hooked on Sustainability Defined!

    I’m a newer listener and already obsessed! The new hosts are fantastic—it’s so refreshing to hear women leading the conversation in sustainability. They’re super engaging, fun, and bring great energy to the show. I also love the shorter format—it’s perfect for my commute.

    I’m currently getting my MA in sustainability, and I’ve started diving into older episodes with Jay and Scott. They have such a great way of breaking down complex topics and making sustainability feel accessible to everyone. I... more

    Apple Podcasts
    5
    Pam Sauci
    United Statesa year ago
  • Insightful and enjoyable podcast

    I appreciate the podcast's format, starting with background information to set the stage, followed by insightful interviews with experts, and concluding with a fun fact. The podcast excels at simplifying complex topics for all listeners to grasp. The hosts' strong rapport and engaging delivery make it a delightful listening experience.

    Apple Podcasts
    5
    LLBRUN
    United States2 years ago
  • Great Hosts, Great Format, Great Podcast

    Loyal Definer Jason here. Thank you for bringing this podcast to life. I am an avid consumer of all global issue and climate related topics, and the way you two present this critical information is the best I have had the pleasure to experience. Climate journalism is critical to ensuring a sustainable future for our planet, and you are doing a great job of it. Keep it up!

    Apple Podcasts
    5
    Jason :D
    United States2 years ago
  • By far my favorite podcast about sustainability

    I’ve been enjoying this podcast for over 5 years now! Jay and Scott do a great job of introducing new concepts and interesting guests with a smile! Very easy to listen to, checkout the website too as there is a lot of info there if you find yourself wanting to go further down the rabbit hole after listening to an episode!

    Keep up the great work guys !

    TK from France

    Apple Podcasts
    5
    tfkauffman
    France2 years ago

Listeners Say

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

Clear, accessible explanations that make complex topics approachable.
Engaging hosts with a mix of humor and rigorous discussion.
Consistent value for listeners seeking practical sustainability insights.
High-quality production and structure that makes episodes easy to follow.
Strong guest lineups that add credibility and diverse viewpoints.

Talking Points

Recent interactions between the hosts and their guests.

Ep. 99: Sustainability & Supply Chains (Ft. The Association for Supply Chain Management)
Q: Can sustainability actually build resilience for businesses instead of being just an ethical choice?
Yes, sustainability and resiliency are converging because visibility into the supply chain enables better risk management, faster response to shocks, and long-term continuity, which ultimately protects both the organization and its stakeholders.
Ep. 98: Hot Commodities: Sugar (ft. Fairtrade America)
Q: How does Fair Trade work with farmers on the ground to ensure standards are met?
Fair Trade works from producers up to brands, auditing to ensure standards are met, educating consumers, and using producer votes to shape governance and investments like education and water access.
Ep. 96: Hot Commodities: Bananas (ft. Equifruit)
Q: What can we do as consumers to put pressure on buyers?
Consumers should contact grocery store managers to express their support for fair trade sourcing.
Ep. 96: Hot Commodities: Bananas (ft. Equifruit)
Q: Could you explain to the definers the difference between fair trade with a capital F and fair space trade?
Fair trade refers to an international certification, while fair space trade is a general expression for decent trading relations.
Ep 93: Sustainability at the Thanksgiving Table - Joy, Burnout, and Hope (ft. Soapbox Project)
Q: What advice do you have for our listeners who might be dreading those Thanksgiving table conversations?
Draw your own boundaries of the conversations you are willing to have and want to have.

Audience Metrics

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

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Frequently Asked Questions About Sustainability Defined

What is Sustainability Defined about and what kind of topics does it cover?

The show consistently breaks down sustainability topics into approachable, concrete concepts often explored through expert interviews. Episodes span areas like corporate ESG, supply chains, regenerative agriculture, and the social dimensions of sustainability, with a mix of historical context, practical tactics, and cultural framing. A recurring strength is connecting high-level ideas to everyday life and real-world impact, aided by engaging hosts who blend accessible humor with rigorous analysis. Noteworthy is the emphasis on consumer empowerment, ethical sourcing, and systemic change, plus a format that often features industry guests to add credibility and fresh perspectives. This makes it a strong fit for listeners who want clear, action... more

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Which podcasts are similar to Sustainability Defined?

These podcasts share a similar audience with Sustainability Defined:

1. All Things Sustainable
2. Zero: The Climate Race
3. Freakonomics Radio
4. 99% Invisible
5. Life Kit

How many episodes of Sustainability Defined are there?

Sustainability Defined launched 10 years ago and published 121 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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Our systems regularly scour the web to find email addresses and social media links for this podcast. We scanned the web and collated all of the contact information that we could find in our podcast database. But in the unlikely event that you can't find what you're looking for, our concierge service lets you request our research team to source better contacts for you.

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What guests have appeared on Sustainability Defined?

Recent guests on Sustainability Defined include:

1. Sudheer Kosaraju
2. Abe Eshkenazi
3. Amanda Archilla
4. Jennie Coleman
5. Marcy Twete
6. Nivi Achanta
7. Nick Valenzia
8. Michael Ham

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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