This study uses atmospheric measurements to estimate methane emissions from an oil and gas production field in Uintah County, Utah. The researchers calculate a methane emission rate of 55±15x103 kg/hr, equivalent to 6.2-11.7% of average natural gas production in the county for that month. This demonstrates the value of the mass balance technique for independently assessing methane emissions from oil and gas regions. The single-day estimate also illustrates the need for more atmospheric measurements to better understand inventory estimates and the variability of emissions over time.
Study of Methane Emissions in the Marcellus, Haynesville and Fayetteville Sha...Marcellus Drilling News
A new study by researchers at the University of Colorado’s Cooperative Institute for Research in Environmental Sciences and the National Oceanic and Atmospheric Administration (NOAA). Titled "Quantifying atmospheric methane emissions from the Haynesville, Fayetteville, and northeastern Marcellus shale gas production regions," the new study finds very little methane leakage in the Marcellus Shale region--less than 1/2 of 1%.
INNOVATIVE DISPERSION MODELING PRACTICES TO ACHIEVE A REASONABLE LEVEL OF CON...Sergio A. Guerra
Presentation delivered at the Annual Air and Waste Management Association conference in Long beach, California on June 26, 2014.
Innovative dispersion modeling techniques are presented including ARM2, EMVAP and the 50th percentile background concentration. Case study involves peaking engines that are used 250 hour per year. These intermittent sources are required to undergo a modeling evaluation in many states. Current modeling techniques grossly overestimate the emissions from these sporadic sources.
NOVEL DATA ANALYSIS TECHNIQUE USED TO EVALUATE NOX AND CO2 CONTINUOUS EMISSIO...Sergio A. Guerra
The current study presents a new data analysis technique developed while evaluating continuous emission data collected from a trash compactor. The evaluation involved tailpipe sampling with a portable emission monitoring system (PEMS) from a diesel fueled 525-horsepower trash
compactor. The sampling campaign took place by running the compactor with regular no. 2 diesel, B20 and ULSD fuels. The purpose was to determine the possible emission reductions in nitrous oxides (NOx) and carbon dioxide (CO2) from the use of B20 and ULSD in an off-road
vehicle. The results from the NOx analysis are discussed.
The initial data analysis identified two important issues. The first concern related to a bias in the calculated F values due to the very large number of samples (N). The large N influenced the probability values and indicated a false statistical significance for all factors tested. Additionally,
the data observations were found to be highly autocorrelated. Thus, a time interval data reduction
technique was used to address these two statistical limitations to the robustness of the statistical
analyses. The result in each case was a subset of quasi-independent observations sampled at an interval of 800 seconds. The autocorrelation and false statistical significance issues were promptly resolved by using this technique. Since the issues of false statistical significance and autocorrelation are inherent in continuous data, the positive results obtained from the use of this technique can be far-reaching. This technique allowed for a valid use of the general linear model (GLM) with engine speed as the covariate factor to test day, fuel type and compactor factors. This technique is most relevant given the advancements in data collection capabilities that
require data handling techniques to satisfy the statistical assumptions necessary for valid analyses to ensue.
Study of Methane Emissions in the Marcellus, Haynesville and Fayetteville Sha...Marcellus Drilling News
A new study by researchers at the University of Colorado’s Cooperative Institute for Research in Environmental Sciences and the National Oceanic and Atmospheric Administration (NOAA). Titled "Quantifying atmospheric methane emissions from the Haynesville, Fayetteville, and northeastern Marcellus shale gas production regions," the new study finds very little methane leakage in the Marcellus Shale region--less than 1/2 of 1%.
INNOVATIVE DISPERSION MODELING PRACTICES TO ACHIEVE A REASONABLE LEVEL OF CON...Sergio A. Guerra
Presentation delivered at the Annual Air and Waste Management Association conference in Long beach, California on June 26, 2014.
Innovative dispersion modeling techniques are presented including ARM2, EMVAP and the 50th percentile background concentration. Case study involves peaking engines that are used 250 hour per year. These intermittent sources are required to undergo a modeling evaluation in many states. Current modeling techniques grossly overestimate the emissions from these sporadic sources.
NOVEL DATA ANALYSIS TECHNIQUE USED TO EVALUATE NOX AND CO2 CONTINUOUS EMISSIO...Sergio A. Guerra
The current study presents a new data analysis technique developed while evaluating continuous emission data collected from a trash compactor. The evaluation involved tailpipe sampling with a portable emission monitoring system (PEMS) from a diesel fueled 525-horsepower trash
compactor. The sampling campaign took place by running the compactor with regular no. 2 diesel, B20 and ULSD fuels. The purpose was to determine the possible emission reductions in nitrous oxides (NOx) and carbon dioxide (CO2) from the use of B20 and ULSD in an off-road
vehicle. The results from the NOx analysis are discussed.
The initial data analysis identified two important issues. The first concern related to a bias in the calculated F values due to the very large number of samples (N). The large N influenced the probability values and indicated a false statistical significance for all factors tested. Additionally,
the data observations were found to be highly autocorrelated. Thus, a time interval data reduction
technique was used to address these two statistical limitations to the robustness of the statistical
analyses. The result in each case was a subset of quasi-independent observations sampled at an interval of 800 seconds. The autocorrelation and false statistical significance issues were promptly resolved by using this technique. Since the issues of false statistical significance and autocorrelation are inherent in continuous data, the positive results obtained from the use of this technique can be far-reaching. This technique allowed for a valid use of the general linear model (GLM) with engine speed as the covariate factor to test day, fuel type and compactor factors. This technique is most relevant given the advancements in data collection capabilities that
require data handling techniques to satisfy the statistical assumptions necessary for valid analyses to ensue.
An Analytical Survey on Prediction of Air Quality Indexijtsrd
A drastic increase of modernization gives birth to many industries and automobiles, which intern becomes the very common reason for the environmental issues like Air and water pollutions. Air pollution is the immediate affecting factors in our life, which contaminates the air that we breathe to cause serious health hazards. So it is very important to predict the Air quality index for the future coming days so that proper prompt action can be taken by the concern authorities to curb the same. The air quality reading for the different gases can be collect through the physical sensors and these readings can be used to predict the future Air quality index. Machine learning is acting as the catalyst in this prediction scenario to predict the accurate Air quality index for the future instance. Most of the learning systems need a huge amount of the data for the learning purpose and it is not possible to provide this every time. So it is a need to predict the air quality index by using considerable less amount of past instance data, This paper mainly concentrates on analyzing the past work in prediction of air quality index using machine learning and try to evaluate their flaws and to estimate the new possible way of prediction using machine learning. Suraj Kapse | Akshay Kurumkar | Vighnesh Manthapurvar | Prof. Rajesh Tak "An Analytical Survey on Prediction of Air Quality Index" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd28072.pdf Paper URL: https://www.ijtsrd.com/engineering/information-technology/28072/an-analytical-survey-on-prediction-of-air-quality-index/suraj-kapse
Potential Gas Committee Biennial Assessment of U.S. Natural Gas SuppliesMarcellus Drilling News
A report issued every two years by the non-profit, non-partisan Potential Gas Committee that evaluates how much technically recoverable natural gas exists, given what's know and existing technology. This report shows the highest volume of natural gas available in the Committee's 50-year history--thanks to shale. The Marcellus/Utica represents 35.2% of all technically recoverable natural gas in the country.
EVALUATION OF SO2 AND NOX OFFSET RATIOS TO ACCOUNT FOR SECONDARY PM2.5 FORMATIONSergio A. Guerra
On January 4, 2012, the EPA committed to engage in rulemaking to evaluate updates to the Guideline on Air Quality Models (AppendixWof 40 CFR 51) and, as appropriate, incorporate new analytical techniques or models for secondary PM2.5. As a result, the National Association of Clean Air Agencies (NACAA) developed a screening method involving offset ratios to account for
secondary PM2.5 formation. This method can be used to evaluate total (direct and indirect) PM2.5 impacts for permitting purposes. Therefore, the evaluation of this method is important to determine its viability for widespread use.
Aviation carbon footprint of global scheduled international passenger flights...Dave Southgate
This book describes the carbon footprint of global international aircraft operations in 2012. It contains a large number of graphics and tables which are designed to make the data readily accessible to the reader.
Probabilistic & Source Characterization Techniques in AERMOD ComplianceSergio A. Guerra
The short term NAAQS are more stringent and traditional techniques are not suitable anymore. The probabilistic nature of these standards also opens the door to modeling techniques based on probability. Source characterization studies can also be used to refine AERMOD’s inputs to be more accurate and achieve reductions of more than half. This presentation will cover these compliance methods.
Currently, it is assumed that a given emission unit is in operation at its maximum capacity every hour of the year. However, assuming constant maximum emissions is overly conservative for facilities such as power plants that are not in operation all the time at full load. A better approach is the use of the Monte Carlo technique to account for emission variability. Another conservative assumption in NAAQS modeling relates to combining predicted concentrations from AERMOD with maximum or design concentrations from the monitor. A more reasonable approach is to combine the 50th percentile background concentration with AERMOD values.
The inputs to AERMOD can be obtained by more accurate source characterization studies. Such is the case of building dimensions commonly calculated with BPIP. These dimensions tend to overstate the wake effects and produce significantly higher concentrations especially for lattice structures, elongated buildings, and streamlined structures. An Equivalent Building Dimensions (EBD) study can be used to inform AERMOD with more accurate downwash characteristics.
Nowadays by seeing the present scenario AIR is the essential element to live & Air Quality Index is a tool to distinguish the benefit of air quality. There are different methods to identify AQI, based on many impurities viz. PM2.5, PM10,CO were used to compare ambient air quality. By calculating AQI we define the quality level of air to be good, moderate, and hazardous as AQI is calculated by using the reference of "The United States Environmental Protection Agency" We are using thingspeak server to fetch the data into the cloud, so anyone can access the data in their respective location. We are not only focusing on stationary measurement but also on the real time value measurement of AQI. Which helps common people to access the Air Quality Index throughout the city and help them decide to stay in a cleaner air environment? Thus the foremost idea of AQI is to inform people about their air quality so they can step to defend their health.
Gittleman SUMA PS5035 spring 2017 final reportEmily Gittleman
Greenhouse gas inventory for Applied Science & Technology, a private consulting firm specializing in thin film manufacturing, primarily for green energy devices as part of the Greenhouse Gas Emissions: Measuring and Minimizing the Carbon Footprint course. The inventory included Scope 1, 2 and 3 emissions, providing benchmarking of the company’s energy usage and recommendations for reduction of emissions.
Complying with EPA's Guidance for SO2 DesignationsSergio A. Guerra
EPA is under a Court order to complete the remaining SO2 designations for the rest of the country in three additional rounds. On March 20, 2015 the EPA released an updated guidance for 1-hr SO2 area designations. The two options included are compliance through dispersion modeling or ambient monitoring. Of these two options, dispersion modeling is the fastest and most cost effective one to characterize SO2 air quality. However, this compliance demonstration can be challenging given that AERMOD tends to produce overly conservative concentration estimates. Source characterization techniques and probabilistic techniques may be used to achieve compliance with the 1-hour NAAQS. Three advanced methods discussed: 1) Equivalent Building Dimensions (EBD); 2) Emission Variability Processor (EMVAP); 3) 50th Percentile Background Concentrations.
Evaluation of the Theoretical Problems with Building Downwash Using A New Met...Sergio A. Guerra
While the current EBD method is the best available option to determine correct building dimensions in the model, a different method was suggested by EPA in the 2011 Memo: Model Clearinghouse Review of EBD for AERMOD. Attachment B to the 2011 Memo includes an assessment of the Alcoa Davenport Works EBD Study. In this evaluation EPA compared wind tunnel observations with AERMOD derived concentrations. However, this evaluation has important shortcomings. First, to carry out this comparison between wind tunnel and AERMOD concentrations, it is necessary to collect velocity profiles that include longitudinal and vertical turbulent intensity measurements upwind of the stack. These data were not available for the EPA evaluation of the Alcoa Davenport Works EBD Study. Second, the wind tunnel model operating conditions were converted to full scale conditions by using exact similarity. However, exact similarity is not used to specify model operating conditions since only momentum ratios are matched but not buoyancy ones. Whereas EPA did not provide important details on how this study was performed, this paper outlines how to properly carry out this new method where AERMOD is used to determine equivalent building dimensions. The viability of this new method was also evaluated and discussed.
Many studies have shown that the increased atmospheric concentration of pollutants has an intensified health risk on lung-, heart- and cardiovascular disease sufferers, as well as the increasing willingness of morbidity and mortality. Therefore, the monitoring of the air pollutants is particularly important. The goal of the recent study was to show a complex picture about Veszprém county’s air quality situation and to discover the relationships between the selected air pollutants (PM10, CO, NO2, SO2, O3) concentration and the picked health diseases (cardiovascular diseases, respiratory diseases, gastrointestinal disorders, ischemic heart disease, cerebrovascular disease, and chronic lower respiratory diseases). Ambient air pollution and hospital admission data for the research were obtained for 2005–2013. According to the calculations; it was found that there was a moderate relation between the air pollutants concentrations and the health diseases.
การนำเสนอบทความวิชาการในการประชุมวิชาการ 15th GMSARN International Conference 2020 on “Sustainable Energy, Environment and Climate Change Transitions in GMS” 21-22 December 2020, Krungsri River Hotel, Phra Nakhon Si Ayutthaya, Thailand. ในรูปแบบออนไลน์
หัวข้อ Integration of Future Meteorological Drought Hazard Assessment for Agriculture Area in Upper Ping River Basin, Thailand
New Guideline on Air Quality Models and the Electric Utility IndustrySergio A. Guerra
The revision of the Guideline on AQ Models (Appendix W) will prompt many changes in the way dispersion modeling is conducted for regulatory purposes. Some of the changes to the Guideline include enhancements and bug fixes to the AERMOD modeling system, new screening techniques to address ozone and secondary PM2.5, delisting CALPUFF as the preferred long-range transport model, and updates on the use of meteorological input data. These changes will have a significant impact on the regulated community. This presentation will cover the main highlights from this guidance and how the electric utility industry will be impacted. In addition, the latest information provided by EPA during the 2016 Regional, State, and Local Modelers' Workshop will also be presented.
Polish official (Andrzej Jasiński Advisor to Deputy Prime Minister, Minister of Economy, Adviser to the Chief Inspector for Environment Protection, Ministry of Environment Poland
An Analytical Survey on Prediction of Air Quality Indexijtsrd
A drastic increase of modernization gives birth to many industries and automobiles, which intern becomes the very common reason for the environmental issues like Air and water pollutions. Air pollution is the immediate affecting factors in our life, which contaminates the air that we breathe to cause serious health hazards. So it is very important to predict the Air quality index for the future coming days so that proper prompt action can be taken by the concern authorities to curb the same. The air quality reading for the different gases can be collect through the physical sensors and these readings can be used to predict the future Air quality index. Machine learning is acting as the catalyst in this prediction scenario to predict the accurate Air quality index for the future instance. Most of the learning systems need a huge amount of the data for the learning purpose and it is not possible to provide this every time. So it is a need to predict the air quality index by using considerable less amount of past instance data, This paper mainly concentrates on analyzing the past work in prediction of air quality index using machine learning and try to evaluate their flaws and to estimate the new possible way of prediction using machine learning. Suraj Kapse | Akshay Kurumkar | Vighnesh Manthapurvar | Prof. Rajesh Tak "An Analytical Survey on Prediction of Air Quality Index" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd28072.pdf Paper URL: https://www.ijtsrd.com/engineering/information-technology/28072/an-analytical-survey-on-prediction-of-air-quality-index/suraj-kapse
Potential Gas Committee Biennial Assessment of U.S. Natural Gas SuppliesMarcellus Drilling News
A report issued every two years by the non-profit, non-partisan Potential Gas Committee that evaluates how much technically recoverable natural gas exists, given what's know and existing technology. This report shows the highest volume of natural gas available in the Committee's 50-year history--thanks to shale. The Marcellus/Utica represents 35.2% of all technically recoverable natural gas in the country.
EVALUATION OF SO2 AND NOX OFFSET RATIOS TO ACCOUNT FOR SECONDARY PM2.5 FORMATIONSergio A. Guerra
On January 4, 2012, the EPA committed to engage in rulemaking to evaluate updates to the Guideline on Air Quality Models (AppendixWof 40 CFR 51) and, as appropriate, incorporate new analytical techniques or models for secondary PM2.5. As a result, the National Association of Clean Air Agencies (NACAA) developed a screening method involving offset ratios to account for
secondary PM2.5 formation. This method can be used to evaluate total (direct and indirect) PM2.5 impacts for permitting purposes. Therefore, the evaluation of this method is important to determine its viability for widespread use.
Aviation carbon footprint of global scheduled international passenger flights...Dave Southgate
This book describes the carbon footprint of global international aircraft operations in 2012. It contains a large number of graphics and tables which are designed to make the data readily accessible to the reader.
Probabilistic & Source Characterization Techniques in AERMOD ComplianceSergio A. Guerra
The short term NAAQS are more stringent and traditional techniques are not suitable anymore. The probabilistic nature of these standards also opens the door to modeling techniques based on probability. Source characterization studies can also be used to refine AERMOD’s inputs to be more accurate and achieve reductions of more than half. This presentation will cover these compliance methods.
Currently, it is assumed that a given emission unit is in operation at its maximum capacity every hour of the year. However, assuming constant maximum emissions is overly conservative for facilities such as power plants that are not in operation all the time at full load. A better approach is the use of the Monte Carlo technique to account for emission variability. Another conservative assumption in NAAQS modeling relates to combining predicted concentrations from AERMOD with maximum or design concentrations from the monitor. A more reasonable approach is to combine the 50th percentile background concentration with AERMOD values.
The inputs to AERMOD can be obtained by more accurate source characterization studies. Such is the case of building dimensions commonly calculated with BPIP. These dimensions tend to overstate the wake effects and produce significantly higher concentrations especially for lattice structures, elongated buildings, and streamlined structures. An Equivalent Building Dimensions (EBD) study can be used to inform AERMOD with more accurate downwash characteristics.
Nowadays by seeing the present scenario AIR is the essential element to live & Air Quality Index is a tool to distinguish the benefit of air quality. There are different methods to identify AQI, based on many impurities viz. PM2.5, PM10,CO were used to compare ambient air quality. By calculating AQI we define the quality level of air to be good, moderate, and hazardous as AQI is calculated by using the reference of "The United States Environmental Protection Agency" We are using thingspeak server to fetch the data into the cloud, so anyone can access the data in their respective location. We are not only focusing on stationary measurement but also on the real time value measurement of AQI. Which helps common people to access the Air Quality Index throughout the city and help them decide to stay in a cleaner air environment? Thus the foremost idea of AQI is to inform people about their air quality so they can step to defend their health.
Gittleman SUMA PS5035 spring 2017 final reportEmily Gittleman
Greenhouse gas inventory for Applied Science & Technology, a private consulting firm specializing in thin film manufacturing, primarily for green energy devices as part of the Greenhouse Gas Emissions: Measuring and Minimizing the Carbon Footprint course. The inventory included Scope 1, 2 and 3 emissions, providing benchmarking of the company’s energy usage and recommendations for reduction of emissions.
Complying with EPA's Guidance for SO2 DesignationsSergio A. Guerra
EPA is under a Court order to complete the remaining SO2 designations for the rest of the country in three additional rounds. On March 20, 2015 the EPA released an updated guidance for 1-hr SO2 area designations. The two options included are compliance through dispersion modeling or ambient monitoring. Of these two options, dispersion modeling is the fastest and most cost effective one to characterize SO2 air quality. However, this compliance demonstration can be challenging given that AERMOD tends to produce overly conservative concentration estimates. Source characterization techniques and probabilistic techniques may be used to achieve compliance with the 1-hour NAAQS. Three advanced methods discussed: 1) Equivalent Building Dimensions (EBD); 2) Emission Variability Processor (EMVAP); 3) 50th Percentile Background Concentrations.
Evaluation of the Theoretical Problems with Building Downwash Using A New Met...Sergio A. Guerra
While the current EBD method is the best available option to determine correct building dimensions in the model, a different method was suggested by EPA in the 2011 Memo: Model Clearinghouse Review of EBD for AERMOD. Attachment B to the 2011 Memo includes an assessment of the Alcoa Davenport Works EBD Study. In this evaluation EPA compared wind tunnel observations with AERMOD derived concentrations. However, this evaluation has important shortcomings. First, to carry out this comparison between wind tunnel and AERMOD concentrations, it is necessary to collect velocity profiles that include longitudinal and vertical turbulent intensity measurements upwind of the stack. These data were not available for the EPA evaluation of the Alcoa Davenport Works EBD Study. Second, the wind tunnel model operating conditions were converted to full scale conditions by using exact similarity. However, exact similarity is not used to specify model operating conditions since only momentum ratios are matched but not buoyancy ones. Whereas EPA did not provide important details on how this study was performed, this paper outlines how to properly carry out this new method where AERMOD is used to determine equivalent building dimensions. The viability of this new method was also evaluated and discussed.
Many studies have shown that the increased atmospheric concentration of pollutants has an intensified health risk on lung-, heart- and cardiovascular disease sufferers, as well as the increasing willingness of morbidity and mortality. Therefore, the monitoring of the air pollutants is particularly important. The goal of the recent study was to show a complex picture about Veszprém county’s air quality situation and to discover the relationships between the selected air pollutants (PM10, CO, NO2, SO2, O3) concentration and the picked health diseases (cardiovascular diseases, respiratory diseases, gastrointestinal disorders, ischemic heart disease, cerebrovascular disease, and chronic lower respiratory diseases). Ambient air pollution and hospital admission data for the research were obtained for 2005–2013. According to the calculations; it was found that there was a moderate relation between the air pollutants concentrations and the health diseases.
การนำเสนอบทความวิชาการในการประชุมวิชาการ 15th GMSARN International Conference 2020 on “Sustainable Energy, Environment and Climate Change Transitions in GMS” 21-22 December 2020, Krungsri River Hotel, Phra Nakhon Si Ayutthaya, Thailand. ในรูปแบบออนไลน์
หัวข้อ Integration of Future Meteorological Drought Hazard Assessment for Agriculture Area in Upper Ping River Basin, Thailand
New Guideline on Air Quality Models and the Electric Utility IndustrySergio A. Guerra
The revision of the Guideline on AQ Models (Appendix W) will prompt many changes in the way dispersion modeling is conducted for regulatory purposes. Some of the changes to the Guideline include enhancements and bug fixes to the AERMOD modeling system, new screening techniques to address ozone and secondary PM2.5, delisting CALPUFF as the preferred long-range transport model, and updates on the use of meteorological input data. These changes will have a significant impact on the regulated community. This presentation will cover the main highlights from this guidance and how the electric utility industry will be impacted. In addition, the latest information provided by EPA during the 2016 Regional, State, and Local Modelers' Workshop will also be presented.
Polish official (Andrzej Jasiński Advisor to Deputy Prime Minister, Minister of Economy, Adviser to the Chief Inspector for Environment Protection, Ministry of Environment Poland
Presentation geert de cock kartuzy_fracking_polish_final_longgdecock
Ta prezentacja została wykonana podczas imprezy w dniu 25 października 2012 w Kartuzach, gdzie Food & Water Europe został zaproszony przez grupy lokalnej. Poinformowaliśmy lokalnych mieszkańców o zagrożeniach, negatywnego wpływu i wyolbrzymionych korzyści gazu łupkowego w Polsce.
Presentation geert de cock lembork_fracking_english_final_shortgdecock
This presentation was made during an event on October 26, 2012 in Lembork, where Food & Water Europe was invited by a local group. We informed local residents about the risks, negative impacts and the exaggerated benefits of shale gas for Poland.
Zittel shale gas European-perspective-14-may-2013-2gdecock
Drawing on his 'Fossil and Nuclear Fuels: The Energy Outlook' report for the Energy Watch Group, Werner Zittel explains how shale gas production in Europe will be expensive to extract and not make a significant impact on European gas prices or the import dependency of select EU Member States.
Presentation geert de cock kartuzy_fracking_english_final_longgdecock
This presentation was made during an event on October 25, 2012 in Kartuzy, where Food & Water Europe was invited by a local group. We informed local residents about the risks, negative impacts and the exaggerated benefits of shale gas for Poland.
Drawing on his 'Drill, Baby. Drill' report for the Post-Carbon Institute, J. David Hughes explains how shale gas production in the US has already peaked and how a further reliance on shale gas will lead to a drilling treadmill.
Study: Estimation of regional air-quality damages from Marcellus Shale natura...Marcellus Drilling News
A study conducted by private research firm Rand Corporation. A first-order estimate of conventional air pollutant emissions, and the monetary value of the associated environmental and health damages, from the extraction of unconventional shale gas in Pennsylvania.
A bridge to nowhere: methane emissions and the greenhouse gas footprint of na...Marcellus Drilling News
A so-called research paper by Cornell professor Robert Howarth who attempts to prop up his wild theories that methane is worse for the earth than burning coal by reviewing other people's research and issuing so-called reports in so-called "peer reviewed" (and obscure) online journals. The original is published here: http://onlinelibrary.wiley.com/doi/10.1002/ese3.35/full
The report looks at federal, state and local activities to help control air pollution from oil and gas--both drilling and pipelines. Without taking sides, this report provides information on the natural gas industry and the types and sources of air pollutants caused by the industry. The report examines the role of the federal government in regulating these emissions, including provisions in the Clean Air Act and EPA's onerous regulatory activities.
Drexel University Study on Air Quality Near Marcellus Shale Drilling SitesMarcellus Drilling News
A new study of the effects of Marcellus Shale extraction on air quality. The study was published in the peer reviewed journal Environmental Science & Technology and titled "Atmosphere Emission Characterization of Marcellus Shale Natural Gas Development Sites". It finds far less impact on air quality near drilling sites than previously thought, but also a measurable impact on air quality near compressor stations.
The carbon footprint of aircraft operations in Australia - 2011Dave Southgate
This book describes the carbon footprint of both domestic and international aircraft operations in Australia in 2011. It contains a large number of graphics and tables which are designed to make the data readily accessible to the reader.
Righi et al_climate_impact_of_biofuels_in_shipping-global_model_studies_og_th...www.thiiink.com
ABSTRACT: Aerosol emissions from international shipping
are recognized to have a large impact on the Earth’s radiation
budget, directly by scattering and absorbing solar radiation and
indirectly by altering cloud properties. New regulations have
recently been approved by the International Maritime Organi-
zation (IMO) aiming at progressive reductions of the maximum
sulfur content allowed in marine fuels from current 4.5% by
mass down to 0.5% in 2020, with more restrictive limits already
applied in some coastal regions. In this context, we use a global
bottom-up algorithm to calculate geographically resolved emis-
sion inventories of gaseous (NOx, CO, SO2) and aerosol (black
carbon, organic matter, sulfate) species for different kinds of
low-sulfur fuels in shipping. We apply these inventories to study the resulting changes in radiative forcing, attributed to particles from shipping, with the global aerosol-climate model EMAC-MADE. The emission factors for the different fuels are based on measurements at a test bed of a large diesel engine. We consider both fossil fuel (marine gas oil) and biofuels (palm and soy bean oil) as a substitute for heavy fuel oil in the current (2006) fleet and compare their climate impact to that resulting from heavy fuel oil use. Our simulations suggest that ship-induced surface level concentrations of sulfate aerosol are strongly reduced, up to about 40-60% in the high-traffic regions. This clearly has positive consequences for pollution reduction in the vicinity of major harbors. Additionally, such reductions in the aerosol loading lead to a decrease of a factor of 3-4 in the indirect global aerosol effect induced by emissions from international shipping.
My presentation at the Norwegian Academy of Science and Letters on the Terrestrial Carbon Cycle (2 October 2017). I do not using present so detailed on the carbon cycle, so the slide deck is not that well developed. I mainly focused on aspects of uncertainty, and the interplay between the land sources and sinks.
Continental methane gas production and its implication to the global animal/l...Open Access Research Paper
This study utilized a descriptive type of research. Annual methane gas emissions were identified in each country worldwide. The amount of methane gas emission every year was utilized using secondary data available from the internet. In this study, the trend of methane gas emission is analyzed by getting its average concentration in a forty-two (42) year production from 1970-2012. The highest volume of methane gas is observed in Asia while the least volume is registered by the Australian continent. Symbolic regression was used for curve-fitting rather than the traditional model –based regression analysis. The results indicated that Asian continent has the highest methane gas outputs with volatility of trends over time. Most of the countries in Asia are developing or underdeveloped which have bigger space for rapid industrialization in the name of development. This could be attributed to its booming industries and high agriculture animal production. The production period of agricultural animals directly affects the concentration of methane gas because of the amount of their waste products that are soon to be decomposed by microorganisms. However, Australia has the most stagnant concentration of methane gas among all the sampled continents due to the fact that this continent was already highly revolutionized by computer modernization, and the production of agricultural animals was maintained for numerous years.
Commentary Refuting a Cornell Study on the Greenhouse Gas Footprint of Natura...Marcellus Drilling News
Cornell professors Lawrence Cathles, Larry Brown and Andrew Hunter, along with Milton Taam, respond with their own analysis of natural gas vs. coal and refute earlier claims by another group of Cornell professors (Howarth, Santoro and Ingraffea) that burning coal is actually better for the environment than burning natural gas.
EPA Inspector General Report Calling on EPA to Do More About Fugitive MethaneMarcellus Drilling News
A "report" by the Environmental Protection Agency's Inspector General that says the EPA is not doing enough to stop so-called fugitive methane from leaking from pipelines. The IG wants the EPA to use stricter measures and move away from voluntary measures (to forced measures) to reduce methane leakage. All in an attempt to address the issue of mythical global warming.
Digital Transformation and IT Strategy Toolkit and TemplatesAurelien Domont, MBA
This Digital Transformation and IT Strategy Toolkit was created by ex-McKinsey, Deloitte and BCG Management Consultants, after more than 5,000 hours of work. It is considered the world's best & most comprehensive Digital Transformation and IT Strategy Toolkit. It includes all the Frameworks, Best Practices & Templates required to successfully undertake the Digital Transformation of your organization and define a robust IT Strategy.
Editable Toolkit to help you reuse our content: 700 Powerpoint slides | 35 Excel sheets | 84 minutes of Video training
This PowerPoint presentation is only a small preview of our Toolkits. For more details, visit www.domontconsulting.com
Building Your Employer Brand with Social MediaLuanWise
Presented at The Global HR Summit, 6th June 2024
In this keynote, Luan Wise will provide invaluable insights to elevate your employer brand on social media platforms including LinkedIn, Facebook, Instagram, X (formerly Twitter) and TikTok. You'll learn how compelling content can authentically showcase your company culture, values, and employee experiences to support your talent acquisition and retention objectives. Additionally, you'll understand the power of employee advocacy to amplify reach and engagement – helping to position your organization as an employer of choice in today's competitive talent landscape.
Putting the SPARK into Virtual Training.pptxCynthia Clay
This 60-minute webinar, sponsored by Adobe, was delivered for the Training Mag Network. It explored the five elements of SPARK: Storytelling, Purpose, Action, Relationships, and Kudos. Knowing how to tell a well-structured story is key to building long-term memory. Stating a clear purpose that doesn't take away from the discovery learning process is critical. Ensuring that people move from theory to practical application is imperative. Creating strong social learning is the key to commitment and engagement. Validating and affirming participants' comments is the way to create a positive learning environment.
Cracking the Workplace Discipline Code Main.pptxWorkforce Group
Cultivating and maintaining discipline within teams is a critical differentiator for successful organisations.
Forward-thinking leaders and business managers understand the impact that discipline has on organisational success. A disciplined workforce operates with clarity, focus, and a shared understanding of expectations, ultimately driving better results, optimising productivity, and facilitating seamless collaboration.
Although discipline is not a one-size-fits-all approach, it can help create a work environment that encourages personal growth and accountability rather than solely relying on punitive measures.
In this deck, you will learn the significance of workplace discipline for organisational success. You’ll also learn
• Four (4) workplace discipline methods you should consider
• The best and most practical approach to implementing workplace discipline.
• Three (3) key tips to maintain a disciplined workplace.
Discover the innovative and creative projects that highlight my journey throu...dylandmeas
Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
An introduction to the cryptocurrency investment platform Binance Savings.Any kyc Account
Learn how to use Binance Savings to expand your bitcoin holdings. Discover how to maximize your earnings on one of the most reliable cryptocurrency exchange platforms, as well as how to earn interest on your cryptocurrency holdings and the various savings choices available.
Personal Brand Statement:
As an Army veteran dedicated to lifelong learning, I bring a disciplined, strategic mindset to my pursuits. I am constantly expanding my knowledge to innovate and lead effectively. My journey is driven by a commitment to excellence, and to make a meaningful impact in the world.
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