Bacteria were the first creatures to inhabit our planet and are the basis of all life. They provide balance, harmonize all life processes, maintain metabolism, train the immune system and protect the limits of the body. The widespread fight against bacteria is now causing bigger problems than it should have originally solved: Resistant bacterial strains, impoverished soils, diseases, water pollution and environmental poisoning are all accompanied by changes in the microbial flora and can be solved by dealing with them differently. Effective Microorganisms (EM) is a mixed microbial culture of lactic acid bacteria, yeasts and photosynthetic bacteria that was discovered about 30 years ago and has been used successfully worldwide ever since. They can be used to improve soils, purify water and eliminate odours.