From the 1960s to mid 1970s environmentalists operated with what Rees (1985:) called ‘messianic fervour’; they stimulated popular interest that has seldom ventured from advocacy to real solutions or political activism (Lewis, 1992). That had changed by 1980, with environmentalism increasingly involved with politics, commerce, law and business (Wilson, 1994). Some environmentalists are willing to embrace technology, biotechnology and the free market; many will not (Anderson, 1993; Narveson, 1995). There are also those on the side of science and rationalism who challenge environmentalism and the Green Movement (Brick, 1995).