Yomiuri Shimbun: The government’s annual report on energy issues, which was released Tuesday, sheds light on the proposed sector-by-sector approach to global warming, in addition to analyzing how speculative funds have contributed to pushing up crude oil prices. The white paper for fiscal 2007 deems it necessary to tackle global warming as an integral part of energy policy. The report says the government’s proposed sectoral approach is the most effective way to curb greenhouse gas emissions, …