• Rockin’ The Rails

    Rockin’ The Rails

    Georgetown Rail Equipment Co. Delivers A Lot Of Aggregate With The Help Of Van der Graaf Extreme-Duty Drum Motors. Read More
  • Changes In Lease Accounting

    Changes In Lease Accounting

    There Are Important Changes To Lessees’ Financial Statements Under The New Lease Accounting Standard. Read More
  • Five Valuable Business Lessons About Drones

    Five Valuable Business Lessons About Drones

    More Recent (And Better) Datapoints Show What Works And What Doesn’t For Mining Operators And Aggregate Producers. Read More
  • Delivering Fuel Efficiently

    Delivering Fuel Efficiently

    Multi-Tank Trailers Relieve Fueling Headaches For Douds Stone And Norris Asphalt Paving. Read More
  • Superstars Of Screening

    Superstars Of Screening

    Manufacturing Ingenuity, Product Advancements Create New Possibilities for Aggregates Producers. Read More
  • Headwaters MB Aggregates Market Report

    Headwaters MB Aggregates Market Report

    In This Exclusive Analysis Prepared For Rock Products, Headwaters MB Looks At Current Market Trends Such As Mergers And Acquisitions, Aggregate Production And Pricing. Read More
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Rock From The Road: Blog & Travelogue

July 12, 2017– Do you have an innovative process that helps workers stay healthy or improves safe operations? The National Institute of Occupational Safety and Health (NIOSH) wants to hear...
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Prime-Time Products

Red Meters premiered its RM Series, a product lineup of highly accurate non-nuclear density meters. Coated with an abrasion resistant liner to withstand rough and finely ground slurries, the RM3...
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Manufacturers in Focus

Regal Beloit Corp., a leading manufacturer of electric motors, electrical motion controls, power generation and power transmission components, announced it has launched a new, responsive website platform with significant upgrades,...
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People on the Move

LiuGong Machinery introduced Kevin Thieneman as chairman of LiuGong North America and senior chief director of Guangxi LiuGong Machinery.
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Rock Stars

ASTM International’s Committee on Concrete and Concrete Aggregates (C09) presented its top annual award – the Award of Merit – to Robin E. Graves, corporate manager of technical services for...
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Distributor News

CASE Construction Equipment has named its 2017 Diamond Dealer and Gold Dealer award recipients as a part of its North American Construction Equipment Partnership Program. The awards recognize dealerships across the U.S. and Canada for excellence in five categories, including...
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Resource Center

Study: Methane Leakage from Shale Gas Lower Than Alleged


Initial findings from a new comprehensive study undertaken by the Environmental Defense Fund and the University of Texas found that methane leakage rates from natural gas systems were far below estimates of previous studies.

In 2011, a study released from Cornell University led by ecologist Robert Howarth purported to show high levels of methane “leakage” from natural gas systems, including wells that had been hydraulically fractured. The Howarth study indicated that as much as 7.9 percent of natural gas developed from shale was leaking into the atmosphere thus negating its carbon-friendly advantages.

Studies since the release of the Howarth report have all tended to dispute or outwardly challenge the findings contained in the report. However, initial findings from the new study should leave little doubt.
The first part of the EDF study confirms the consensus reached by most scientists that methane leakage rates from natural gas systems were far below the estimates provided in the Howarth report. The study reviewed emissions associated with well development, production, and completions and found leakage of methane fell below estimates made by the United States Environmental Protection Agency (USEPA). The agency's most recent data found that overall leakage from the natural gas production process was actually below 1.5 percent.

Using their own writings, critics of the use of natural gas have claimed that leakage rates must fall below 2 to 3 percent in order to obtain any benefit from the use of natural gas. This report simply confirms USEPA's findings of leakage rates well below those found in the Howarth study and even below the thresholds set forth by critics of the natural gas industry.