Possible Clues:

• Industrial city on the Japanese island of Honshu
• Environmental protocol city
• Fatal blow squashing trifle coming from the East, as Bush would have it
• Move to South of Eastern capital, a nearby city
• Japan's old capital
• Capital before Tokyo rose - or Tokyo collapsed?
• Old capital new capital has shifted to
• Where the Mikado once lived
• Global warming treaty city
• Former Japanese capital city - Tokyo (anag)