Please have a look at my newest video (the English version of the former in Spanish) :
Sustainable food aid at home – PART 1
http://youtu.be/zj6Vx5sAI6w

My bottle garden a few weeks after planting seedlings in the bottle towers (Photo WVC)

Plenty of vegetables and herbs all year long (Photo WVC)

Less water, less fertilizer, but more fresh food : isn’t this a solution for all the malnourished and hungry of this world ? (Photo WVC)
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About Willem Van Cotthem
Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.