The extraction and transfer from the earth crust to the atmosphere of every economically available molecule of carbon, including coal,oil, tar sand oil, shale oil, methane gas, coal seam gas and other forms of hydrocarbon, constitutes the most significant shift in composition of the atmosphere since the PETM hyperthermal event about 56 million years ago[i] … Continue reading The Methane Time Bomb and the Future of the Biosphere