Reuters: Japanese greenhouse gas emissions fell 6.4 percent to 1.286 billion tons on CO2 equivalent in the year to March 2009 from a year earlier, the Nihon Keizai Shimbun said on Wednesday, quoting a survey by the environment ministry. The figure is in line with expectations for a preliminary figure to be announced by the ministry at 2 p.m. (0500 GMT) on Wednesday for the global-warming gases in the first year of Japan’s Kyoto Protocol obligations. For a graphic tracking Japan’s …