Paul Needham: Owning electricity

Paul Needham

Paul Needham’s organization, Simpa Networks, makes solar energy available to the poor. By using a pay-as-you-go pricing structure modeled after mobile phone cards, Simpa gives its customers ownership of the electricity. Once the initial cost of the equipment is paid off, the device belongs to the customer and their electricity is free.

John Thackara: The end of endless growth

John Thackara

Social critic John Thackara argues that the current human paradigm of endless growth is obviously unsustainable, so we should consider the brilliance of the Brazilian Jequitiba tree, which soaks up four tons of water a day.

“I am a proper tree hugger, as well as a lichen hugger.”