A news report from the first week of the leak.
Since March 25, the Elgin gas platform off the coast of Scotland has been leaking 7 million cubic feet of gas a day. The natural gas, mostly methane, doesn’t have the dark stain of oil and it hasn’t inspired the news coverage of Deepwater Horizon. But that doesn’t mean it can be ignored.
Like carbon dioxide, methane is a greenhouse gas that traps heat in the Earth’s atmosphere. But methane is much worse: the same amount of methane will have 25 times the warming effect of carbon dioxide over a 100-year period. In the six months that it will take to stop the leak, enough methane would have escaped into the atmosphere to equal the annual global warning impact as 300,000 new cars, according to a recent TIME article.
The Elgin gas leakage is an extreme example of how natural gas exploration and processing is always beset by leaks. After all, the stuff is gas that wants to float away. The TIME piece dissects a recent paper in the Proceedings of the National Academy of Sciences evaluating whether natural gas really is more environmentally friendly than coal. Their answer? It depends, and it partially depends on leaks. Read More
A tower for removing gas at the Marcellus Shale Formation in Pennsylvania.
When it was revealed in November that several small earthquakes in northwestern England had been caused by fracking, the controversial process of extracting shale gas from bedrock by cracking the rock with pressurized water, the gas company responsible stated that it was an extremely unlikely occurrence. True as that may be, residents of Youngstown, Ohio, can now testify that something similar has happened again. This time, it wasn’t the removal of shale gas that triggered the earthquakes, but apparently the subsequent cracking of sandstone in order to store the wastewater produced by fracking.
An EPA report published Tuesday told residents near Pavillion, Wyoming to avoid drinking and cooking with well water after tests revealed petroleum hydrocarbons and other contaminants in 17 out of 19 wells near the town. Many residents worry that local drilling for natural gas is to blame. The EPA is still investigating.
“EPA has not reached any conclusions about how constituents of concern are occurring in domestic wells,” the report said. [Reuters]
As the agency continues its investigation, it along with other government organizations and the natural gas company EnCana, will provide alternative drinking water sources for affected residents. EnCana volunteered to provide the water, though a company representative told the AP that company’s tie to the contaminated the wells is unclear–since the chemicals appeared in earlier EPA tests, before EnCana’s drilling started in 2005.