The Freeman: Ideas on Liberty, Vol. 58 No. 2
http://www.thefreemanonline.org/featured/environmentalists-in-outer-space/
These radical views even have found their way into the work of relatively moderate writers. Glenn H. Reynolds and Robert P. Merges, for example, generally favor private property rights, but make an exception for “environmental research and conservation preserves,” which would place “10 to 15 percent of the area capable of being developed” off limits.