BBC: Japan has announced a target of cutting greenhouse gas emissions by 15% over the next 11 years – a figure derided by environmentalists as “appalling”. The target equates to a cut of about 8% from 1990 levels, the commonly used baseline. By comparison, the EU plans a 20% reduction over the same period. The announcement comes in the middle of talks on the UN climate treaty in Bonn. Some observers say Japan’s goal is not enough to persuade developing countries to cut their …