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1997 article by David Holmgren, one of the co-founders of the permaculture movement, discusses the evolution of ideas related to environmentally progressive responses to weeds and pests, with particular focus on Australia.
Provides users with a helpful gateway to permaculture courses, events, services, and resources. The Portal is also the online home for the Bullocks' permaculture site in Orcas Island, Washington.
Publisher Permaculture International Journal, now a networking organization connecting permaculture groups and activists as well as offering an electronic newsletter.