2004 年 16 巻 3 号 p. 227-230
Ethical problems on eco-engineering experiments, especially on the Mini-earth project using the Eco-nauts was examined. Results showed that studies of eco-engineering had severe bio-ethical problems when those studies adopted an ecological system including humans as experimental subject. On the Mini-earth project, there appeared the problem as informed consent on the Eco-nauts. The problem was placed in the context of bio-ethics. As a result, we concluded that institutional review board (IRB) was effective for the Mini-earth project and partnership between researchers and Eco-nauts were essential.