The impacts of mycorrhizal colonization of soils are similar to those of introducing no-till practices: restored soil carbon, reduced soil erosion, and better soil quality. Farming accounts for an annual erosion loss of over 3 billion metric tons of soil in the US. Widespread use of mycorrhizae that reduced erosion by even just 1% -- a very conservative estimate, given the dramatic effect of the symbiosis on soil structure -- could translate into saving tens of millions of metric tons of soil annually in our nation. Mycorrhizal impact on remediation of the global greenhouse gas problem is also sizeable. A 10% increase in crop gas exchange from managing mycorrhizal symbiosis -- again a conservative estimate -- on just 5% of US land would increase carbon sequestration by 3.3 million metric tons ($66 million value) per year. Mycorrhizal improvement of soil structure and gas exchange also impacts plant health, through soil water infiltration, water holding capacity and plant drought resistance.