Extensive controversy exists on the advantages and disadvantages of releasing genetically altered organisms into the environment. Based on research findings by world renowned leaders from the scientific community, it examines the potential benefits and hazards of the introduction of bio-engineered organisms into the environment and creates a dialogue between ecologists and molecular biologists to explore this vast arena. Commissioned by the internationally recognized SCOPE committee for the advancement of scientific thought, this invaluable guide will benefit all those involved in the research and dispensation of genetically altered organisms.