The much-touted conversion from coal- and oil-fired power generation to natural gas actually raises the greenhouse effect of energy consumption by around 40 percent because of alarming methane emissions from gas, Berlin-based Energy Watch Group (EWG) said in new study. According to the authors of the study published this week, natural gas has often been touted as the ‘cleanest’ fossil fuel that could be the ‘bridge’ fuel toward a zero-emissions future. However, if methane emissions are considered in addition to the carbon…