437. Passive Solar Greenhouses, The Solution to Food Security in Northern Climates

RELATED DISTINCT: Green Energy Futures episode on Alberta/northern passive solar greenhouses (Freshpal Farms-style Chinese passive solar) as food-security strategy—related thermal-mass approach distinct from walipini pits. Apple Podcasts exact title: 437. Passive Solar Greenhouses, The Solution to Food Security in Northern Climates; show Green Energy Futures; released 2026-06-12. Description: Sadru Nazarali sees passive solar greenhouses as game-changer for food production in northern countries vs fossil-heated greenhouses. Description notes VIDEO edition framing competitive northern greenhouse industry struggles with fossil heating costs.

Evidence tier: podcast. RELATED DISTINCT: Chinese/Alberta-style passive solar greenhouses (north wall thermal mass), not dug walipini.

podcast|candidate