MrsKP have been re-reading the article, quite thought provoking.
"Lifestyles in Britain are becoming increasingly unsustainable and are placing an ever larger burden on the global environmental system."
The UK's food self-sufficiency has been falling steadily for more than a decade, and indigenous food production is now said to be at its lowest level for half a century.
Playing devils advocate, one could say that inflation causes consistently rising salaries to allow one to live the affluent life!!
However, from a self sufficiency point of view, I have recently been reading Hugh Fernley-Whittingstall 'The River Cottage Year'
He is passionate about seasonal cookery, shopping and cooking in tune with the seasons of the year.
It certainly gives some meaning to why and what we grow ;)