Bloomberg: Japan and China are preparing a joint statement on climate change for Chinese President Hu Jintao’s visit to Tokyo next week, Japan’s chief government spokesman said. Hu and Japanese Prime Minister Yasuo Fukuda will probably issue a statement on global warming after they hold a summit meeting on May 7, Chief Cabinet Secretary Nobutaka Machimura said today at a regular press briefing in Tokyo. “We have the impression that China puts first priority on its economic development, …