Consider this your daily dose of fracking, just without the fluids. Pardon the poor taste in puns, but the process, short for "hydraulic fracturing", seems to be in the news just about once an hour these days and today is no exception.
Colorado Parks and Wildlife commissioners have voted unanimously to authorize limited oil and gas development within a state park east of Longmont. The decision giving the initial go ahead to Anadarko Petroleum’s controversial proposal at St. Vrain State Park follows nearly a year of review.
Small earthquakes in Ohio and Arkansas associated with hydraulic fracturing for natural gas have taken many people by surprise. Gas industry executives say there's no hard evidence that their activities are causing these quakes. But some scientists say it's certainly possible; in fact, people have been causing quakes for years.
In the 1960s, geologists realized that gold mines in South Africa had created small earthquakes. Caverns dug into the earth thousands of feet below the surface collapsed. The "pancake" effect caused quakes — in one case a magnitude-5.2 temblor.