greenhouse gas source Articles

  • A close look at fugitive methane emissions from natural gas

    Natural gas is booming in the United States. Production has increased by 20 percent in the last five years, fueled largely by technological advances in shale gas extraction. Other countries–including China–are now studying our ...

  • Shale Gas: Time to look before we leap any further

    Shale gas is a game-changer for global energy supply. It is already transforming the U.S. energy outlook, and is expected to deliver over 40% of domestic gas production by 2025 (Figure 1). Other countries and regions, notably Europe and China, may soon follow suit, in a repeat of the early 20th century oil rush. Opinion is bitterly divided, however, over the environmental risks and benefits of ...

  • Formulating LandGem model for estimation of landfill gas under Indian scenario

    Mostly in India, solid waste without any segregation is deposited into open dumping sites. Through these sites, there is uncontrolled emission of methane and landfill gas. The landfill gas has tremendous potential in terms of converting and using them as source of fuel. The emission of landfill gas depends on types of wastes, its rate of biodegradability, its methane potential, level of ...


    By Inderscience Publishers

  • Turning a Liability into an Asset: A Landfill Gas-to-Energy Project Development Handbook

    Each person in the United States generates about 4.5 pounds of solid waste per day almost one ton per year. Most of this waste is deposited in municipal solid waste landfills. As this landfilled waste decomposes (a process that may take 30 years or more), it produces landfill gas. Landfill gas contributes to the formation of smog and poses an explosion hazard if uncontrolled. Furthermore, because ...


  • Advanced WESP designs assure superior gas cleaning performance

    Nowadays, many industries are facing formidable environmental challenges and there is a growing need for effective, economical gas cleaning and air pollution control equipment. Michael Beltran of Beltran Technologies, Inc. reports on a renewed interest in high-efficiency wet electrostatic precipitators (WESPs) and discusses their importance for controlling sulphuric acid mists and other ...


    By Beltran Technologies, Inc.

  • New study sheds light on methane leakage from natural gas

    Natural gas wells represent a significant source of U.S. greenhouse gas (GHG) emissions, as many of them leak methane, which is more than 20 times more potent than carbon dioxide. But while scientists know that ...

  • Generation using gas-fuelled engines in South Africa – an overview

    Most gas engines are Otto cycle spark ignition internal combustion reciprocating engines using natural gas as the primary fuel. Smaller models utilise stochiometric combustion while the larger engines are lean burn engines with pre-chamber ignition systems. The engines are coupled with packaged generator sets, ...


    By Clarke Energy

  • California Global Warming Solutions Act (AB 32): Early actions for refrigerant gas management

    How to stay ahead and address the early action requirements for Stationary Equipment Refrigerant Management to be included in updates to AB 32. The California Global Warming Solutions Act (AB 32), first passed in 2006 with additional early actions taking effect in 2010, is a broad and comprehensive directive with the goal of reducing greenhouse gasses (GHGs) by approximately 25% by the year ...


    By Verisae

  • QuadOa and OGI: how EPA regulations are changing the way we look at gas leaks

    Earlier this year, the Environmental Protection Agency (EPA) published Regulation 40 CFR, Part 60, Sub-part OOOOa, commonly known as Quad Oa, and finally brought optical gas imaging (OGI) firmly into the mainstream. This presents a major shift in the way fugitive emissions are regulated, and the technology that can be used.  Detecting and acting on gas leaks is naturally a major ...

  • St. Landry Parish Solid Waste Disposal District: Turning Landfill Gas Into Biofuel

    One of the pioneers in biogas use, St. Landry Parish Solid Waste Disposal District has used its landfill gas to fuel vehicles in their local Sheriff’s Department. Born out of the need to deal with open dumps in the late 1970s, the St Landry Parish Solid Waste Disposal District’s purpose was to deal with the growing problem. Before its creation, waste was collected by a ...


    By Waste Advantage Magazine

  • Air Quality Permitting for a New Coal-Fired Power Plant: A Timeline

    The high price of natural gas and alternative fuels has made utility companies take a second look at coal as a cheap, plentiful fuel source. For a greenfield plant considering coal, the environmental considerations are significant but not insurmountable. This article discusses the air quality regulations and permitting requirements that must be addressed, from New Source Review to greenhouse gas ...


    By Trinity Consultants

  • Measurements and Standards to Support Increased Energy Efficiency and Reduced Environmental Impact

    “The world is facing twin energy-related threats: that of not having adequate and secure supplies of energy at affordable prices and that of environmental harm caused by consuming too much of it.” Daniel Hecker, economist, Bureau of Labor Statistics, July 2005 Buildings in the U.S. consume 72 percent of all electrical energy produced in this country. Emissions associated with ...

  • Enterprise Carbon Accounting: The quest for unprecedented transparency

    Enterprise carbon accounting (ECA) is an essential requirement for companies and will likely become necessary due to government legislation. No longer is it permissible for a company to look within its borders, but it must look at its overall environmental responsibilities and accurately gauge and measure carbon production and emission caused by its very existence. Financial data must be directly ...


    By Verisae

  • Global environmental impacts of the hydrogen economy

    Hydrogen-based energy systems appear to be an attractive proposition in providing a future replacement for the current fossil-fuel based energy systems. Hydrogen is an important, though little studied, trace component of the atmosphere. It is present at the mixing ratio of about 510 ppb currently and has important man-made and natural sources. Because hydrogen reacts with tropospheric hydroxyl ...


    By Inderscience Publishers

  • Meet the GHG Rule

    On October 30, 2009, EPA issued a final rule that requires reporting of greenhouse gas (GHG) emissions from all sectors of the economy. The final rule applies to fossil fuel suppliers and industrial gas suppliers, direct GHG emitters, and manufacturers of heavy-duty and off-road vehicles and engines. The rule requires only that “sources above certain threshold levels monitor and report ...


    By Acta Group

  • Compost as a landfill cover material for the elimination of methane emissions

    Landfills, with about 40 - 60 Mio t emitted CH4 each year, are considered to be an important global source of the greenhouse gas methane. These emissions are especially caused by inadequate gas collection systems and uncontrolled emissions from old dumps and unauthorised open dumping. With traditional gas collection systems only 40 to 60 % of the produced gas can be collected and reused or safely ...


    By ORBIT e.V.

  • Different emission estimates by EU bodies

    EU GHG inventory submission to UNFCCC (EEA and DG Climate Action) The European Union (EU), as a party to the United Nations Framework Convention on Climate Change (UNFCCC), reports annually on greenhouse gas (GHG) inventories for the years 1990 to X-2 (i.e. two years before the current year1) and within the area covered by its Member States. The legal basis for the compilation of the EU GHG ...

  • Why did GHG emissions decrease in the EU between 1990 and 2012?

    Total GHG emissions (excluding LULUCF) in the EU decreased substantially since 1990, reaching their lowest level in 2012. The EU emitted 4,544 million tonnes of CO2 eq. in 2012, accounting for less than 10% of global GHG emissions1. Figure 1 shows total greenhouse gas emissions in the period 1990– 2012, both in the EU-15 (which is collectively a party to the Kyoto Protocol) and in the ...

  • Case study -Carbon footprint for major oil refining company in Abu Dhabi

    Anticipating Future Legislative Requirements In 2011 WKC assisted a major oil refining company in the UAE with an extensive programme to quantify their entire organizational GHG emissions in a systematic manner. The project was developed in anticipation of future legislation related to Greenhouse Gas (GHG) emissions reduction in the UAE, opportunities offered by the ...


    By WKC Group

  • Utilisation of Methane to Generate Electricity: BHP Appin and Tower Collieries

    Background BHP Collieries Division operates five underground coal mines in and around the Illawarra region of NSW. They include the Appin and Tower mines which are situated north-west of Wollongong and some 75 kilometres from Sydney. These two mines produce around 3.5 million tonnes of coal per year which is primarily used for domestic steel making. Some coking and energy coal is also ...


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