It's Time to Rethink the Disrupted U.S. Food System from the Ground Up

The COVID-19 pandemic and resulting economic shutdowns have severely disrupted and spotlighted weaknesses in the U.S. food system. Farmers, food distributors and government agencies are working to reconfigure supply chains so that food can get to where it’s needed. But there is a hidden, long-neglected dimension that should also be addressed as the nation rebuilds from the current crisis.

As scholars who study different aspects of soil, nutrition and food systems, we’re concerned about a key vulnerability at the very foundation of the food system: soil. On farms and ranches across the U.S., the health of soil is seriously compromised today. Conventional farming practices have degraded it, and erosion has shorn away much of it.

Iowa has lost about half the topsoil it had in 1850. Since they were first plowed, America’s farmland soils have lost about half of their organic matter – the dark, spongy decomposed plant and animal tissue that helps make them fertile.

The soil that produces our nation’s food supply is a weakened link slowly failing under ongoing strain. This breakdown isn’t as dramatic as what happened in the 1930s during the Dust Bowl, but it is just as worrying. Human history holds many examples of once-thriving agricultural regions around the world where failure to maintain soil health degraded entire regions far below their potential agricultural productivity, impoverishing the descendants of those who wrecked their land.

We believe there is an urgent need to rebuild soil health across the U.S. This can help maintain harvests over the long run and lay a solid foundation for a more resilient food system. Investing in soil health will benefit environmental and human health in ways that are becoming increasingly apparent and important.

Food Production Starts with Soil
Soil is the foundation of the U.S. food system. Fruits, vegetables, nuts and oils come directly from plants grown in soil. Meat, poultry, dairy products and many farmed fish come from animals that feed on plants. Wild-caught fish and shellfish, which provide a tiny fraction of the typical American diet, are virtually the only exception.

As populations around the globe ballooned over recent centuries, so did pressure to force more productivity out of every available acre. In many parts of the world, this led to farming practices that degraded soil far beyond its natural fertility.