Bloomberg: A panel advising Japanese Prime Minister Taro Aso on climate change has proposed mid-term targets to reduce greenhouse gas emissions that could shrink the country’s gross domestic product by as much as 6 percent. The five proposals range from a 25 percent cut in carbon emissions from 1990 levels by 2020 to a 4 percent increase, according to a document released today in Tokyo. The panel’s subcommittee, chaired by former Bank of Japan governor Toshihiko Fukui, is due to make a final …