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Index > United States of America > Methane leaks make fracking dirty

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Halliburton Loophole

"Father of Fracking"
George Mitchell
concerns over environmental
impacts of fracking

History of Fracking
Only a new technology

USA Fracking Stories

A Texan tragedy

Gas injection may have triggered earthquakes in Texas

California Lags in Fracking Regulations

All In for California Water

Fracking in Michigan

Fracking in Michigan Potential Impact on Health, Environment, Economy

Hydraulic fracturing of Marcellus Shale

Methane Gas from Marcellus Shale Drilling

Marcellus Shale Gas Economics

Health impacts of Marcellus shale gas drilling

Pennsylvania Fracking

Fracking in Virginia

Lesson From Wyoming Fracking

Water Pollution from Fracking

Hydraulic Fracturing Poses Substantial Water Pollution Risks

Methane in drinking water wells

Abandoned gas wells leak

Natural Gas Leaks Discovered in Boston

Methane Leaks Under Streets of Boston

Methane leaks make fracking dirty

Fracking effects real estate values

Fracking stimulates earthquakes

Protecting Gas Pipelines From Earthquakes

Gas Pipeline Earthquake - Simulations

America's crumbling pipelines

Averting Pipeline Failures

Dangers to Underground Pipelines

Gas Pipelines Could Serve as Wireless Links

Government Action needed on a National Energy Policy

EPA Releases Update on Ongoing Hydraulic Fracturing Study

Solar Booster Shot for Natural Gas Power Plants

Natural Gas Pricing Reform to Facilitate Carbon Tax Policy

Investing in fracking

What Oil Prices Have in Store?

Methane Out, Carbon Dioxide In

Health impacts of Marcellus shale gas drilling

Professor Ingraffea

Anti-Fracking Billboard

Natural Gas Drilling

Threats to Biodiversity

Pronghorn Migration
hindered by gas development

Microbes in a Fracking Site

Protozoa May Hold Key to World Water Safety

Shale Gas Production

Research into the Fracking Controversy

Convert Methane Into Useful Chemicals

Methane Natural Gas Into Diesel

'Natural Gas' at the molecular level

Arctic Methane risks

Arctic Methane Seeps

Great Gas Hydrate Escape

Undersea Methane Seep Ecosystem

Methane in the Atmosphere of Early Earth

Methane Natural Gas Linked to Climate Change

Cutting Methane Pollutants Would Slow Sea Level Rise

California | Colorado | Dakota | Marcellus | Massachusetts | Michigan |
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Shale Gas


Methane Leaks Can Make Fracking Gas ‘Dirtier’ than Coal Or Oil

4/11/2011 - Cornell University - Newswise — ITHACA, N.Y. – Extracting natural gas from the Marcellus Shale could do more to aggravate global warming than mining coal, according to a Cornell study published in the May issue of the peer-reviewed journal Climatic Change Letters.

While natural gas has been touted as a clean-burning fuel that produces less carbon dioxide than coal, ecologist Robert Howarth warns that we should be more concerned about methane leaking into the atmosphere during hydraulic fracturing.

Natural gas is mostly methane, which is a much more potent greenhouse gas, especially in the short term, with 105 times more warming impact, pound for pound, than carbon dioxide, Howarth said, adding that even small leaks make a big difference.

He estimated that as much as 8 percent of the methane in shale gas leaks into the air during the lifetime of a hydraulic shale gas well – up to twice what escapes from conventional gas production.

“The take-home message of our study is that if you do an integration of 20 years following the development of the gas, shale gas is worse than conventional gas and is, in fact, worse than coal and worse than oil,” Howarth said.

“We are not advocating for more coal or oil, but rather to move to a truly green, renewable future as quickly as possible. We need to look at the true environmental consequences of shale gas.”

Howarth, a professor of ecology and environmental biology, Tony Ingraffea, professor of engineering, and Renee Santoro, a research technician in ecology and evolutionary biology, analyzed data from published sources, industry reports and even PowerPoint presentations from the Environmental Protection Agency.

They compared estimated emissions for shale gas, conventional gas, coal (surface-mined and deep-mined) and diesel oil, taking into account direct emissions of CO2 during combustion, indirect emissions of CO2 necessary to develop and use the energy source and methane emissions, which were converted to equivalent value of CO2 for global warming potential.

The study is the first peer-reviewed paper on methane emissions from shale gas, and one of the few exploring the greenhouse gas footprints of conventional gas drilling.

Most studies have used EPA emission estimates from 1996, which were updated in November 2010 when it was determined that greenhouse gas emissions of various fuels are higher than previously believed.

“We are highlighting unconventional gas because it is a contemporary problem for us in upstate New York, and because there is a big difference between developing gas from an unconventional well and a conventional well, for the mere reason that unconventional wells are bigger,” Ingraffea said.

He noted that the hydraulic fracturing process lends itself to more leakage because it takes more time to drill the well, requires more venting and produces more flowback waste, he said.

“We do not intend for you to accept what we’ve reported on today as the definitive scientific study in regards to this question.

It’s clearly not,” he added. “What we’re hoping to do with this study is to stimulate the science that should have been done before.

In my opinion, corporate business plans superseded national energy strategy.”

 

 

 

 

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