There are also those like Doug McEachern who have argued (e.g. "Business and the Wesley Vale Pulp Mill," in J. Young, Ed., 1990, _Ecopolitics_IV_Proceedings_, Centre for Environmental Studies, University of Adelaide) that the rise of the Greens in Australian politics _followed_ the rise of a new stratum of service industry capitalists, especially in industries like tourism --- the conflict of interest between them and industries like logging or mining is obvious.
McEachern's thesis can be seen more explicitly in Western Australia, where the Greens WA has always been more explicitly left/socialist; one consequence is that we also have a right wing Green party, Liberals For Forests, which broke away from the right bloc and probably lost them the last state election.
Regards,
Grant.