This Youtube video by Dr. Robert Howath should be seen by all. In a talk titled, “The Role of Shale Gas Development in the Methane Cycle: New Insights from 13C and 14C Data,” Robert Howarth, PhD, concludes that the global increase in methane over the last 10 years is largely driven by the oil/gas industry. His updated estimate for average, full-cycle methane leakage rate from natural gas operations is 4.1%. Dr. Howarth is the David R. Atkinson Professor of Ecology and Environmental Biology at Cornell University in Ithaca, NY. He is a biogeochemist and ecosystem scientist whose work includes the environmental consequences of energy systems, particularly from oil and gas development and from biofuels, emphasizing water quality and greenhouse emissions. Follow Dr, Howarth on Twitter: @howarth_cornell Video by: Colleen Boland”.