It's the fifth Wednesday of the month so we talk Halloween, activism on the Upfield line and wonder- how much attention does Eugenia actually pay during the show? Our first guest is Peta from Melbourne non-profit Cultivating Community, who talks to us about the important social, economic and health benefits of community gardens in public housing estates. Our second guest is Setu Pelz, an engineer and researcher from the Reiner Lemoine Institut in Berlin. We talk about the immense possibilities for off-grid renewable energy solutions to improve energy access for remote communities, both in developing countries and in our own back yards.