Greenhouse gas producers

Trifluoroacetate salts Aromatics Carbonyl compounds CO2 is only byproduct produced on decarbojylation CO2 is greenhouse gas Produced using corrosive HF... 

Carhon dioxide Fuel comhustion calcining Industrial boilers, cement and hme produc- Greenhouse gas... 

A secondary benefit is that efficiency gains in fossil fuel generation also reduce all types of harmful emissions, even carbon dioxide—the greenhouse gas suspected by many as a major culprit of climate change. A 45 percent efficient plant releases approximately 40 percent less COn per megawatt-hours of electricity produced than a 25 percent efficient plant that it might be replacing. 

Concerns over atmospheric methane as a greenhouse gas and the large contribution of biomethanogenesis as a source of this gas make it important to determine the relative significance of various components of this activity. A recent paper (8) summarized estimates (28-30) of source fluxes of atmospheric methane based on several carbon isotopic studies and presented new data on natural sources and biomass burning. These data (Table III) show that of a total flux of 594 million tons (Tg) per year, 83% is produced via biomethanogenesis from a combination of natural (42%) and anthropogenic (41%) sources. 

Methane (CH4), the Earth s third most important greenhouse gas (behind water vapor and CO2) is produced almost exclusively by terrestrial sources (see Chapters 7 and 11). Natural methane sources include anaerobic microbial... 

As the reaction shows, a hydrocarbon fiiel cell produces carbon dioxide, a greenhouse gas. These fiiel cells would nevertheless be less polluting than internal-combustion engines, because fuel cells are more efficient and do not generate polluting b q)roducts such as CO and NO . ... 

Landfill gas is produced as a result of organic wastes decomposing in landfill sites. It can be recovered at an inexpensive cost of for direct use as a boiler fuel, converted into electricity with a microturbine or upgraded to a higher value fuel gas. This is a very effective mitigation technology since methane is 21 times as powerful as carbon dioxide as a greenhouse gas. 

Much later—more than half a century after Carothers invented nylon— scientists at the University of California at San Diego discovered that the production of nylon seemed to contribute a small but significant amount of nitrous oxide to the atmosphere. By that time, it was well known that nitrous oxide, N20, is a potent greenhouse gas and ozone destroyer. Within a month of the discovery s publication in 1991, Du Pont and several other nylon producers announced plans to phase out nitrous oxide emissions within five years. 

Anaerobic. Moisture is added to the waste mass in the form of recirculated leachate and from other sources to obtain optimal moisture levels. Biodegradation occurs in the absence of oxygen (anaerobically) and produces landfill gas. Landfill gas, primarily methane, can be captured to minimize greenhouse gas emissions and for energy projects. 

Conrad R, Erkel C, Liesack W. Rice cluster I methanogens, an important group of Archaea producing greenhouse gas in soil. Curr. Opin. Biotech. 2006 17 262-267. 

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