For those who choose embalming, there are now several formaldehyde-free, biodegradable embalming fluids, usually made from essential oils, that will adequately preserve the body for up to several weeks. Dry ice is another option, often used when transporting a body. Green embalming is not only healthier for the Earth, but also for the funeral home employees preparing the body. Most green funeral providers will have green embalming options. The sanitation and preservation of a body can almost always take place without the use of chemicals, as is done in most nations in the world.