Zero-taku (also known as Zero-taxis for those who speak
English), cabs which produce no carbon emissions because it is
electric-driven, will start entering service at JR Tokyo Station's
Marunouchi South exit after an inauguration ceremony this Thursday.
Basically, these are Mitsubishi.
i-MiEV electric cars which fall under the
banner of Japanese cab operator Hinomaru Limousine, and are capable
of moving about for 160 kilometers on a fully charged battery. The
first 2 kilometers will cost you $7.80, which is roughly similar to
regular taxis. Looks like you can now take a cab without feeling
too guilty about polluting the earth, eh?