Bloomberg: Japanese Prime Minister Yasuo Fukuda’s government is considering introducing a cap-and-trade system to set limits on greenhouse gas emissions for companies and encourage trading in carbon credits. “The government will form a panel to look into the mechanism on the prime minister’s initiative,” Chief Cabinet Secretary Nobutaka Machimura told reporters in Tokyo today. “Emission trading will definitely be a discussion topic.” Japan, a signatory to the 1997 Kyoto Protocol, …