The 'progressive' ideas of the green movement are truly a wonder to behold. Consider this article on BBC OnLine by Professor Chris Rapley, Director of the British Antarctic Survey. Prof Rapley is very worried by the collective 'footprint' of humankind on our planet's life support systems. The world’s population, he says, which currently stands at about 6.5 billion people, is heading towards eight billion or so by mid-century. The optimum number for sustainable life on the planet, he goes on, is 'perhaps 2-3 billion':

With that number and a timescale as targets, a path to reach ‘Utopia’ from where we are now is, in principle, a straightforward matter of identifying options, choosing the approach and then planning and navigating the route from source to destination.

The only way to reduce the world’s population from 8 billion to 2-3 billion would appear to be by genocide, nuclear holocaust, famine or plague. Just which of these options might the Director of the British Antarctic Survey be recommending to navigate us to utopia? I think we should be told.