=+54. Energy use and recession. The great recession of 2008 changed spending and energy use habits worldwide. Based on data collected from the United Nations Millennium Indicators Database related to measuring the goal of ensuring environmental sustainability, investigate the association between energy use (kg oil equivalent per $1000 GDP) before (2006) and after (2010) the crisis, for a sample of 33 countries (unstats.un.org/unsd/mi/mi_goals.asp; accessed June 2013).