Transhumanism promises us freedom from the biological limitations inherent in our nature. It aims to enhance physical, emotional and cognitive capacities thus opening up new possibilities and horizons of experience. Since many transhumanist aspirations resemble those within the domain of religion, this paper compares Christian ethics to transhumanist ethics with respect to the body and the environment and offers a critique of transhumanism. Three areas of contention are discussed: the modification of our given human nature, the radical extension of our (...) lifespans and our relationship to the natural environment. It argues that in these three areas, the underlying values being transmitted to future generations about the body and the environment are incompatible with Christian principles. (shrink)