While sales of the Chevy Volt languish, the maker of the all-electric and better-selling (but not great-selling) Nissan Leaf maintains that his company’s fortunes and that of his alternative vehicle have a promising future – with two big “ifs.” Renault-Nissan CEO Carlos Ghosn told Reuters he expects 2012 sales to surpass this year, barring “economic 'armageddon'” and “ a 'Lehman-style' crisis.” According to Ghosn, “the highest level of uncertainty is Europe,” but he is confident “that 2012 will be another record year for the car industry no matter what Europe does." But anyone paying attention to the debt crisis...