Recycling globally is the first step.
There is a government initiative in South Africa called 'The Feeding Scheme' which gives students sandwiches and a drink several times a week. With permaculture there is potential to enrich the programme to a deep level of nourishment. An effective way to apply permaculture design is to give children a problem to solve, together with an introduction to permaculture principles. For example, at one school a herb garden is created, then a chicken house with a general forage system, and the eggs are used in the school canteen. There is a cow to milk and the proceeds of the garden all go to the canteen, to be prepared for the children.