Tomas Härdin and David Zachariah recently appeared on the Swedish podcast Fredshetsarna (The Peacemongers). They talk about the letter Tomas wrote for Proletären (Only a global planned economy can solve the environmental crisis) and about an upcoming article that David and Tomas are working on. Other topics of conversation include the Soviet debate on planning, technical issues, and about transparency and democracy in the planning process.
The podcast episode is in Swedish and is available both on YouTube and in audio form via Podbean or wherever you get your podcasts.