Steve Moore was affectionately termed the "Gandhi of Greenhouses" by his students for his low tech innovations to keep his plants warm in winter without using fossil fuels.
He is coming to Ezemvelo in September to assist John Jeavons in the Food and Our Future 5 day workshop we're presenting here. In the relatively mild winters of South Africa it is possible to grow year round with only modest protection from the cold winter nights.
Some of his low-cost greenhouse innovations are described here:
Pictured above is Steve and his wife Carol on the cover of Home Power magazine in 2004.