Abstract

ABSTRACT After a brief review of environmental ethics this paper examines how terrestrial environmental values can be developed into policies to protect extraterrestrial environments. Shallow environmentalism, deep environmentalism and the libertarian extension of rights are compared and then applied to the environmental protection of extraterrestrial bodies. Some scientific background is given. The planet Mars is used as a test case from which an ethical argument emerges for the protection of environments beyond Earth. The argument is based on the necessity to recognise the intrinsic value of all living species and natural environments. At present, the treatment of extraterrestrial environments by makers of space policy is ethically undernourished. This paper explains why such an attitude endangers those environments and calls for the policy‐makers to incorporate non‐anthropocentric ethics into extraterrestrial environmental policy.