Out of an estimated $7.3 billion pledged to address issues such as poverty, disease, conflict and climate change at the Clinton Global Initiative (CGI) last week, nearly half of it will go toward renewable energy projects thanks to a $3 billion pledge by British business mogul Sir Richard Branson.

"What Richard Branson did here is truly wonderful. But you don't have to have $3 billion to commit over ten years to replicate it. It will get a lot of press because of the staggering dollar amount and because he is brilliant and charismatic. ...The most important thing Richard Branson has done is to remind us that yes, we need government changes. Yes, we need rule changes." -- Former President Bill Clinton