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