From Farm Poisoning to Soil Pioneer: Kevin Fretz’s Mission

Send us Fan MailIn this episode of Harvesting Wisdom, host Mike McMahon sits down with Kevin Fretz, founder of Green Earthology and Patriot Green, to explore how waste can become the solution to pollution.Kevin shares his powerful personal story—from being poisoned on a farm in Canada to pioneering higher compost standards across North America and working alongside leaders like Dr. Elaine Ingham. With over 35 years in organics, compost, waste diversion, and regenerative soil systems, Kevin explains how biology-forward composting, biochar, and soil food web science can address climate change, water conservation, land contamination, and even world hunger.This conversation dives deep into circular economy principles, carbon sequestration, waste-to-energy innovations, and how cities like Phoenix can become models for regenerative transformation.Why Listen?-Learn how composting can reduce pollution and regenerate soil-Discover how regenerative biology improves water retention and lowers costs-Understand why most compost on the market is substandard-Explore how biochar and soil microbes can sequester carbon-Hear real-world solutions for farmers, cities, and developing nations-See how sustainability can be both environmentally restorative AND profitableIf you're interested in soil health, climate solutions, regenerative agriculture, circular economies, or waste innovation — this episode is packed with practical insight and hope.00:00 – Introduction to Kevin Fretz & Green Earthology03:00 – Kevin’s early life & farm poisoning experience08:30 – Waste management career & organics diversion in Canada13:45 – Moving to California & pioneering compost development18:30 – Creating higher heavy metal standards in compost22:45 – Transition into horticulture & clean feedstocks26:30 – Meeting Dr. Elaine Ingham & soil food web biology31:00 – Why compost biology matters (fungal vs bacterial dominance)36:00 – Waste-to-energy, pyrolysis & biochar explained41:30 – Biochar as a carbon sink & soil filter46:00 – Circular economy & source separation of waste51:30 – International consulting: Thailand, Brazil & remediation57:00 – Water structuring, energy efficiency & cost reduction1:05:00 – Regenerative programs for farms & municipalities1:12:00 – Why sustainability must be economically viable1:18:00 – Optimism for Phoenix & Arizona’s compost future1:22:00 – Final thoughts: Waste as the solution to pollution