An idea for old MacDonald.

Productivity. A healthy farm produces food in abundance. Economic viability. A healthy farm is a thriving business that provides a good living and fair working conditions to those who work on it, and contributes to a robust local and regional economy. Environmental stewardship. A healthy farm maintains the fertility of the soil and the health of the surrounding landscape for future generations.

via The Healthy Farm: A Vision for U.S. Agriculture | Union of Concerned Scientists.