Gaian Economics is a blog run by Molly Scott Cato, who is the spokesperson on economics for the UK Green Party. Here’s the start of a recent (Dec 27 2010) post:
Henry Ford coined the adage that best describes the ethic of the mass production-mass production era of the 20th century: ‘Any customer can have a car painted any colour that he wants so long as it is black.’ I think we usefully adapt this pithy phrase to help us vision the economy of the future. In this case it can be as colourful as human creativity can encompass but it has one fundamental limit: the energy limit. To put an exact number of the reduction in energy that we are looking for is a speculative process, but we need to reduce our current demand by something between 70 and 90 per cent.