Rio Environment Meeting Focuses on 'Energy for All' http://www.npr.org/2012/06/19/155294726/rio-environment-meeting-focuses-on-energy-for-all Rio+20 Summit Overshadowed by Global Economy http://www.nytimes.com/2012/06/19/world/americas/rio20-summit-overshadowed-by-global-economy.html Major cities tackle climate change while Rio summit's outcome remains...