natural gas

EARTH Magazine: Naturally occurring methane found in groundwater in New York

Since hydraulic fracturing operations began in the Marcellus Shale region, debate has raged over whether drilling operations are causing high levels of methane in drinking-water wells. But few systematic scientific studies have been published to date, so it’s unknown if high methane levels are natural or the result of contamination from nearby gas wells. Now, a new study is adding some much-needed baseline data for methane levels in groundwater in New York. The results suggest that at least in some cases methane occurs at naturally high levels in groundwater.

EARTH: The Bright Future for Natural Gas in the United States

Hydraulic fracturing, or "fracking," has changed the energy landscape. We can now affordably produce natural gas from previously inaccessible rock formations, which has led to increasing natural gas consumption. Thanks to its low prices and abundant domestic supply, natural gas may have a chance to overtake coal as the primary energy source for electricity in the United States.

EARTH: Managing the Seismic Risk Posed by Wastewater Disposal

The debate over hydraulic fracturing has recently focused on the rise in seismicity throughout the primarily stable interior of the United States. These intraplate regions, though not unfamiliar with earthquakes, have been experiencing an increased amount of seismic activity in the last decade. This unusual increase is likely to be caused in part by wastewater disposal practices related to natural gas production. With such a sensitive issue it is important to keep the facts in perspective.

EARTH: Source Code - The Methane Race

What is the lifespan of a natural gas deposit? How quickly is our planet's permafrost melting? And does life exist on other planets? Although seemingly unrelated issues, the answers to these questions are linked. And in this month's issue of EARTH Magazine, scientists show that we may be closer to answering them than we think.

EARTH: Where the Rubber Meets the Road

What would it take for millions of Americans to make the switch from traditional gasoline-powered cars to natural gas vehicles (NGVs)? In what seems like a replay of a bad 1970s movie with high oil prices, prominent energy security risks and fluctuating emissions and regulations - Americans are looking for alternatives to gasoline. EARTH magazine put NGVs to the test in the November issue. Author Castlen Kennedy buckled up for the ride of her life as she and some of her colleagues conducted a 10-day, 4,200-kilometer-long, cross-country trip in a natural gas powered SUV to gain firsthand exposure to the benefits and downfalls of natural gas vehicles.

EARTH: Finding New Oil and Gas Frontiers

Where to next in the search for oil and gas? EARTH examines several possible new frontiers - including the Arctic, the Falkland Islands, the Levant, Trinidad and Tobago and Sudan - where oil and gas exploration are starting to take hold. One of those places, Sudan, is in the news for other reasons: South Sudan voted yesterday on whether to secede from North Sudan.

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