Roberto Perez: Derek Wall 'shows us about strategy and struggle'

It was a real pleasure to spend some time with RobertoPerez when he did his speaking tour in Britain.When the Cuban economy was in severe crisis after cheapoil from Russia stopped with the fall of the Soviet Union,Roberto helped save Cuba from collapse by promoting permacultureand other low energy solutions.'The Power of Community' dvd is all about his work.When the Soviet Union collapsed in 1990