IPCC Fourth Assessment Report: Climate Change 2007   Climate Change 2007: Working Group III: Mitigation of Climate Change    
C. Mitigation in the short and medium term (until 2030)

• Lifestyle changes can reduce GHG emissions. Changes in lifestyles and consumption patterns that emphasize resource conservation can contribute to developing a low-carbon economy that is both equitable and sustainable [4.1, 6.7].
   
• Reduced energy demand, with an investment goal to reduce CO₂ emissions by one per cent per year by 2100. This would be technologically challenging and assumes unprecedented progressive international cooperation focused explicitly on developing a low-carbon economy that is both equitable and sustainable, requiring improvements in end-use efficiency and aggressive changes in lifestyle to emphasize resource conservation and dematerialization.
   

'A Problem of Lifestyles' - May 2007

The Marrakech Process  -  Providing Solutions to Climate Change Mitigation through Sustainable Consumption and Production

Psychology, Climate Change & Sustainable Behaviour - Nov/Dec 2009

See Section  3.I.(f)