
Volts Reducing the climate impacts of food and farming
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Jun 27, 2025 Michael Grunwald, a journalist and author focused on agriculture's climate impact, shares insightful perspectives on the complexities of food production. He discusses the challenges of biofuels and emphasizes the need for sustainable farming practices amidst a growing population. Grunwald explores the potential of meat alternatives while critiquing food waste and the role of innovative fertilizers. The conversation highlights how regenerative agriculture can enhance soil health, pushing us to rethink our diet choices for a more sustainable future.
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Biological Alternatives to Fertilizer
- Half of nitrogen fertilizer is wasted, causing pollution and greenhouse gas emissions.
- New biological alternatives like PivotBio use microbes to fix nitrogen naturally and reduce fertilizer need.
Promise of Gene Editing in Farming
- Advanced gene editing offers precise ways to improve crop yields and fertilizer efficiency.
- Re-engineering photosynthesis could boost yields by 20-50%, a promising frontier for agricultural innovation.
Soil Carbon and Regenerative Limits
- Regenerative agriculture improves soil health but mostly fails to sequester enough carbon to reverse climate change.
- Restoring wetlands and planting trees offer more reliable carbon storage and ecosystem benefits.





