Fungi's Ancient Carbon Work: How Soil Health Science Advances

New research reveals mycorrhizal fungi's role in global carbon sequestration and soil health—without direct food cost implications.

Mycorrhizal fungi partner with 80% of documented plant species globally, a relationship that evolved 450 million years ago. This symbiosis exchanges phosphorus and nitrogen for plants while fungi access carbon from photosynthesis—a partnership critical for land colonization. Toby Kiers, an evolutionary biologist at Vrije Universiteit Amsterdam, studies these networks. The research shows mycorrhizal fungi sequester 13 billion tons of atmospheric carbon annually, equivalent to one-third of global fossil fuel emissions. This process enhances scientific understanding of soil health but does not address food affordability or accessibility directly. The work advances ecological resilience through natural carbon cycling, though it operates without centralized decision-making.

The source provides no claims about food costs or access—only the carbon sequestration scale and evolutionary context. This is a foundational scientific insight, not a policy intervention. For readers seeking food system impacts, the full details remain with the source's podcast transcript (October 15, 2026).

Source: Quanta