Agence France-Presse: Japan will promise to cut its greenhouse gas emissions by 20% from 2013 levels ahead of a global summit on climate change this year, a report said Thursday, despite uncertainty over post-Fukushima energy policy. The government will likely announce the new target at the G7 summit in June in Germany, the leading business daily Nikkei reported, citing unnamed government sources. In a separate report, Kyodo News said Tokyo will set a target of cutting gas emissions by at least 20% by 2030, from 2005...