A crash course in changing the world.
I have chosen Jean Pain of Provence, France as my hero. His innovation with biogass and compost are exactly the type of ideas I want to implement in Africa.
You can view his videos at https://www.youtube.com/watch?v=JHRvwNJRNag&feature=player_embe...
The idea that you can use wood to heat water without a single flame or coal is phenomenal!