Also (40) complicating the move toward electric cars is that individual states are pursuing different environmental (41) agendas. Last month, Hawaii teamed up with Silicon Valley upstart Better Place to build electric-car (42) recharging stations at parking spaces. But California Gov. Arnold Schwarzenegger has thrown his weight behind an (43) approach centered on hydrogen fuel cells, (44) launching a program to ensure that every Californian has access to hydrogen fuel along the state’s major highways by 2010。

　　Moreover, the infrastructure for electric cars is missing. While plug-in vehicles are ideal for urban drivers, few will have access to a plug to charge the car overnight. (45) Meanwhile, utilities aren’t about to invest in thousands of public plug-in stations until there are thousands of plug-in drivers on the road。

　　And then there’s the battery dilemma. (46) Automakers can’t afford the batteries for these electric vehicles until they are manufactured in high volumes. But batteries can’t be produced in such large quantities until automakers produce a high volume of electric cars。