Finally, some great news for those trying to keep their backyards free of coal seam gas wells. In world-first research, two scientists from Southern Cross University, Dr Isaac Santos & Dr Damien Maher, have found evidence of extremely high levels of atmospheric methane near coal seam gas (CSG) fields. Using a high-precision methane detector, Santos & Maher took thousands of air samples between Lismore (in northern New South Wales) and Tara (in southern Queensland), creating a pretty clear picture of methane levels across the region.
Tara is the largest CSG field in Australia and has been a hub of gas production for a few years now, whereas the Northern Rivers region (near Lismore) has lots of ‘natural’ or non-CSG methane producers, such as natural wetlands, sewage treatment plants, an airport and plenty of cattle. In northern New South Wales, the scientists found atmospheric methane concentration never rose higher than 2.1 ppm (natural background levels are around 1.8 ppm). However, around Tara, the methane levels went up as high as 6.9 ppm, with no recorded values below 2 ppm in this region. Continue reading