Business Green: Japan’s prime minister-elect Yukio Hatoyama appears to have heeded international calls and has revised his country’s greenhouse gas emission targets upwards to a 25 per cent cut from 1990 levels by 2020. According to reports from Reuters, while the targets are more aggressive, Hatoyama emphasised that they were dependent on other major nations agreeing similarly stringent aims. “We can’t stop climate change just with our country setting an emissions target,” said Hatoyama. “We …