About this episode
How Climate Change Puts the Agriculture Industry at RiskSince the Industrial Revolution, our soils have lost between twenty and sixty percent of their carbon levels as a result of agricultural practice exacerbated by more common and more extreme droughts and floods resulting from climate change. Farmers have witnessed their crops endure mass devastation as a result of these unprecedented environmental disasters. Hence, the loss of carbon in soil threatens the stability of both the agriculture industry and global food security. Why Does Soil Need Carbon?Stable carbon storage in soil is crucial for healthy soil and supports resistance to climate vulnerability. But how? A 1% increase of carbon in soil equates to a two percent increase in its water-holding capacity, in turn creating more drought-resistant soil that can better weather extreme climate variability. By enhancing its water-holding capacity, as well as nutrient retention rates, stable carbon contributes to both the structure and function of soil. Consequently, soil health and productivity are contingent on soil’s carbon content. By recognizing that stable carbon storage within their soil can lead to more nutrient-dense crops and bigger yields, farmers have a clear economic incentive to seek agricultural solutions that can reduce the current rate of carbon loss their crops are experiencing.The Future of Fungi: Building Resilient Soil EcosystemsBased in Orange, New South Wales, Australian biotech start-up Loam Bio has developed a new way to remove carbon dioxide from the atmosphere and store it underground. The solution, a microbial fungi-based seed treatment, is far less complex than one might initially think, simply requiring farmers to sprinkle the ground-up dust of fungal spores onto seeds actively used in their planting systems. As crops grow from those seeds, the fungal spores attach themselves to the roots. The tendrils of the fungus then extract the carbon that has been absorbed by the crop it latched onto.Plants, on their own, sequester carbon from the atmosphere—a process crucial to mitigating fossil fuel emissions. The microbial fungal treatment leverages that sequestration by reducing the plants’ natural emissions of carbon. This particular type of microbial fungi, therefore, provides a level of
