 TEQs were by that time widely discussed in books, academia and the research world, and in 2006 David Miliband, then Secretary of State for Environment, Food and Rural Affairs, commissioned the Centre for Sustainable Energy to produce a scoping study into the idea.This had the headline finding that "a personal carbon allowance and trading system has the potential to achieve emissions savings in a fairer way than carbon taxes, and would reward people for leading low-carbon lifestyles".Accordingly, a full Government pre-feasibility study into the scheme was launched, made up of four reports (as well as a synthesis report), which were published in May 2008.