British Columbia, listen up, wise up and measure methane leakage! Natural gas’ reputation as a clean alternative to coal relies heavily on the drilling and fracking companies being ultra-cautious and preventing the methane from leaking. A leak rate of anywhere >3%, and the methane supercharges climate change due to its high global warming potential.
“A survey over hydraulic fracturing sites in Pennsylvania revealed drilling operations releasing plumes of methane 100 to 1,000 times higher than what the EPA expects from that stage of drilling, according to a study published Monday in the Proceedings of the National Academy of Sciences.”
Via the Washington Post, here’s more data that drilling companies are allowing methane to escape into the atmosphere at far higher levels than claimed. This data adds to earlier measurements by National Oceanic and Atmospheric Administration (NOAA) and the University of Colorado in Boulder that showed high leakage rates in Colorado and Utah. This also adds to the body of work from Cornell University (Howarth et al. showing high leakage rates. It is pretty clear that escape rates vary from area to area, and also on the ability/willingness of fracking companies to control emissions. What is BC doing about this? As DeSmog pointed out last year, nothing. We assume that our leak rate is 0.4%, best in the world. While BC’s companies are required to “report” methane emissions, they are based on modeling, not measurement. It is pretty clear now that these numbers are not verifiable or reviewable.