How a New Study Seriously Challenges the Claim That Natural Gas Is a Clean Fossil Fuel | Alternet
"Last week, investigators studying methane leakage levels in Manhattan reportedalarming preliminary findings. The gas industry and Con Edison estimate 2.2% leakage in its distribution systems, and at leakage above 3.2%, according to the Environmental Defense Fund, natural gas ceases to have any climate advantage over other fossil fuels. But the study found an average cumulative leakage of over 5% in natural gas production and delivery. At these levels, natural gas—93% of which is methane—has a far more potent greenhouse gas impact than burned coal or oil"
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