On this episode of Mastering Sustainability, we sit down with Kelvin Okamoto, Ph.D., CEO of Green Bottom Line, Inc., to unpack the complex and often misunderstood world of biodegradability.

Kelvin takes us inside the role of ASTM standards in separating science from marketing claims—sharing why rigorous testing is essential to cut through greenwashing and ensure real environmental impact. From clarifying what “biodegradable” truly means to exploring how standards shape policy, industry adoption, and consumer trust, his perspective highlights both the challenges and opportunities in creating accountability in sustainable materials.

Kelvin’s Links:

LinkedIn

Green Bottom Line

Environmental Science & Technology

Plastics News

Packaging News

On this episode of Mastering Sustainability, we sit down with Caroline DeLoach, Director of Sustainability at Atlantic Packaging, to explore how a legacy packaging company is rethinking its role in the fight against plastic pollution.

Caroline takes us inside her journey of driving change from within a 75-year-old family-owned business—sharing what it means to push for bold innovation in an industry often defined by tradition. From partnering with global brands to scale sustainable packaging solutions, to navigating evolving ESG regulations and reimagining supply chains, her perspective reveals both the challenges and the opportunities of leading corporate sustainability from the inside out.

Caroline’s Links:

Linkedin

Atlantic Packaging's A New Earth Project

Trellis (formerly Greenbiz)

Packaging Dive

Waste Dive

Resource Recycling

On the Season Finale of Mastering Sustainability, we’re thrilled to welcome Nathalie Flores - a powerhouse voice for climate action from the Dominican Republic. In this episode, Nathalie shares her inspiring career journey from public service to the private sector, highlighting what it means to lead with purpose and create lasting environmental impact across borders. From shaping sustainability policy in Latin America to engaging in the critical work of global climate legislation, her perspective is both timely and deeply insightful. Tune in to hear how transitioning to the private sector unlocked new opportunities for climate leadership and some behind-the-scenes stories from international climate negotiations.

Nathalie's Links:

LinkedIn

StoneX

Nathalie's Take on Whether Carbon Markets Will Deliver Real Climate Action

In this episode of Mastering Sustainability, Maddie & Ray sit down with Martin Wolf, founder of Wolf Sustainability and former Director of Sustainability & Authenticity for Seventh Generation. With over three decades of experience challenging the status quo, Martin shares insights on what it really means to embed sustainability into every business layer, from product formulation to policy advocacy. We discuss the power (and limits) of green chemistry, the importance of transparency, and how companies can move beyond marketing claims to real systems change.

Contact Martin:

Martin@WolfSustainability.com

Martin's Linkedin

Martin's Links:

Wolf Sustainability

Environmental Health Network - Above The Fold

B-Corp

Center for Biological Diversity

National Environmental Defense Council

In Episode 8 of Mastering Sustainability, we welcome Todd Pooser, founder of the Virtual Commonwealth, a sustainability and social equity investment platform where members agree to self-tax on their sustainable purchases. That money is then used to crowdfund companies with strong sustainability and social equity profiles in which all members become equity partners. In this episode, Todd discusses the ethos behind the platform, the ways that sustainability and social equity are inextricably linked, and lays out a plan for a brighter, collectively funded future for all of us.

Todd's Links:

Connect with Todd on Linkedin or visit his website

The Virtual Commonwealth

Scientific American

The London Review of Books

Learn About Todd's Book, A System's Approach to Public Administration & Social Equity

In Episode 7 of Mastering Sustainability, we welcome Margarita Quihuis, a behavioral psychologist and Executive Director of the Peace Innovation Lab at Stanford University. Throughout a fascinating hour, Margarita dissects the psychology behind how we react to the world around us, how your favorite brands motivate you to make unconscious decisions, and the best way to prompt action.

Margarita's Links:

WTF Is Behavioral Design

Margarita's Linkedin & Medium

Rory Sutherland's Linkedin

Subscribe to The Behavioral Scientist Newsletter

Books:

Robert Chaldini's Influence

Buy BJ Fogg's Tiny Habits

In Episode 6 of Mastering Sustainability, we welcome Neil Shackleton, founder of Medoola. This sustainability consultancy aims to transform packaging supply chains and material efficiency to protect brand equity and triple bottom lines. In this episode, Neil takes us through the evolution of LCA’s over time, how businesses can use them to refine their supply chain while increasing their bottom line, and why your sustainability savings may not always be found in the places you’d think to look.

Neil's Links:

Medoola

Connect with Neil on Linkedin!

In Episode 5 of Mastering Sustainability, we welcome John Duncan, who leads the No Plastic In Nature Initiative for World Wildlife Fund International (WWF). Fresh off INC-5, John takes us to the negotiating table to break down the latest draft of the Global Plastics Treaty and where WWF and the other members of the Business Coalition for the Global Plastics Treaty hope we’re headed.

John’s Links
Connect with John on Linkedin
Learn about the work of the Business Coalition for A Global Plastics Treaty
WWF’s No Plastics In Nature Initiative
John recommends you subscribe to: Fix The News Newsletter