Science is vital in informing the increasingly urgent and complex environmental decisions that affect all our lives, from international agreements on action to limit climate change to decisions on growing genetically modified crops. It is clear, however, that many environmental decisions are taken in the face of scientific uncertainty or ignorance, and involve questions of politics and ethics that go beyond science. Science alone cannot answers such questions as "Are the risks of nuclear power acceptable?" and "Why should we conserve wild species?"   Science and Environmental Decision Making explores the use and limitations of science in helping to answer environmental questions, emphasising the importance of ethics, politics and sociology in the decision making process.