India Today: In an interview with India Today’s Managing Editor Raj Chengappa and Mail Today’s Dinesh Sharma, prominent environmental activist, Nobel Peace Prize winner and former US Vice President Al Gore deliberates upon the issue of global warming. Excerpts: Raj Chengappa: You probably have achieved more in the past seven years than all your years in Government and Legislature that included being twice the vice president of the US. You shared the 2007 Nobel Peace Prize, your documentary movie …