Nethra Rajendran and Cecilia Rios

Sustainability Defined is a education podcast hosted by Nethra Rajendran and Cecilia Rios. It has 100 episodes, with the latest published April 2026.

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 found at www.sustainabilitydefined.com.

education ·en ·100 episodes