TOSHIFUMI KITAMURA/AFP/Getty Images
Nissan Motors' Zero Emission electric vehicle 'Leaf' (R) and five-door hatchback 'Note' are on display at the showroom of its headquarters in Yokohama, south of Tokyo on May 10, 2013. Nissan said its annual net profit came in nearly flat from a year earlier, a result that stood in stark contrast to rivals Toyota and Honda which have booked soaring profits.
This week, there was a push to dramatically increase the number of zero-emission cars on the roads. California and New York are among eight states that have vowed to improve the infrastructure to power clean cars.
Alan Ohnsman, reporter for Bloomberg, joins the show with more.