Spirit of the Earth has been involved in soil remediation and pollution cleanup using both bioremediation and phytoremediation. We have successfully cleaned up hydrocarbon pollution, lead, arsenic, phosphorous and nitrate (ammunition residue) and other pollutants. We also have processes that help eradicate invasive plant species in native plant environments. We are actively working to restore a carbon base in silicate soils such as deserts and other soils that have suffered carbon depletion due to over-fertilization or pollution. Salt build up in soils is a consistent problem due to the use of recycled waste water and the massive numbers of water softeners that use salt to mitigate the mineral content of the water.