We can provide many examples of Permaculture gardens feeding not only families, but supporting food security at schools and communities. We've been working with local NGOs in sub-Saharan Africa since 2002 - primarily using Permaculture, as well as other sustainable land & resource use systems.
In this context, where soil erosion (in large part due to over use of synthetic inputs) has damaged soil structure, Permaculture practices have proved valuable and successful for the practioners we train – reducing their demand for water (irrigation) and redirecting and storing rapid run-off during the rainy seasons.
But the ethics and practice are at the centre of this – and resonate with traditional African farming practices – skills around which are fast being lost. This makes Permaculture training more appropriate than any other model than I have seen, in terms of how people relate and respond to it. Not only are we seeing people feeding themselves and their families (our first requirement) but also sharing food, materials and skills with others in their community. It is soon possible to see dry and derelict areas springing to life – with dusty ground being transformed with canopies of indigenous edibles.
For us, Permaculture is about creating resilient and viable communities in an uncertain future. So, yes, it does far more than feed people. Your detractor is welcome to make contact with us.