نتایج جستجو برای: co2 emissions

تعداد نتایج: 125911  

Journal: :Environmental science & technology 2013
Conor K Gately Lucy R Hutyra Ian Sue Wing Max N Brondfield

On-road transportation is responsible for 28% of all U.S. fossil-fuel CO2 emissions. Mapping vehicle emissions at regional scales is challenging due to data limitations. Existing emission inventories use spatial proxies such as population and road density to downscale national or state-level data. Such procedures introduce errors where the proxy variables and actual emissions are weakly correla...

2015
Shujiro Komiya Kosuke Noborio Kentaro Katano Tiwa Pakoktom Meechai Siangliw Theerayut Toojinda

Although bubble ebullition through water in rice paddy fields dominates direct methane (CH4) emissions from paddy soil to the atmosphere in tropical regions, the temporal changes and regulating factors of this ebullition are poorly understood. Bubbles in a submerged paddy soil also contain high concentrations of carbon dioxide (CO2), implying that CO2 ebullition may occur in addition to CH4 ebu...

2011
Keiko Aoki

This study investigates whether consumers select foods based on the levels of carbon dioxide (CO2) emissions by using a choice experiment in the laboratory. Respondents are asked to purchase a few Satsuma mandarin oranges based on price and the levels of CO2 emissions during different stages of their life cycle of production until packing and to answer questions on environmental consciousness, ...

2015
Ping Wang Wanshui Wu Bangzhu Zhu Yiming Wei

To find the key impact factors of CO2 emissions to realize the carbon intensity target, this paper examined the impact factors of population, economic level, technology level, urbanization level, industrialization level, service level, energy consumption structure and foreign trade degree on the energy-related CO2 emissions in Guangdong Province, China from 1980 to 2010 using an extended STIRPA...

2016
John Deutch Arun Majumdar

SEAB has approved the report of the Task Force on CO2 Utilization at its public meeting of December 12, 2016 and is hereby transmitting it to you. Your charge to the Task Force was to describe a framework for a DOE RD&D program on CO2 utilization technologies that has the potential to reduce CO2 emissions and/or introduce negative emissions at the gigatonne scale. The Task Force, under the lead...

2017
Yue Wang Hongmin Dong Zhiping Zhu Chong Liu Hongwei Xin

Biogas digesters are commonly used in livestock farming in China. The digestion process converts large amounts of raw liquid manure (RLM) to biogas digester effluent (BDE). The BDE is then stored on the farm for some time before land application as crop or orchard nutrients. Storage of RLM or BDE is associated with gas emissions, although little information is available concerning comparison of...

2016
Rina Wu Jiquan Zhang Yuhai Bao Siqin Tong

This study presents the methodology as well as a quantitative analysis of the influence of social and economic factors, namely GDP, population, economic growth rate, urbanization rate, and industrial structure on CO2 emissions as a result of energy consumption in the 101 counties of Inner Mongolia’s industrial sector based on a geographically weighted regression model (GWR) and geographical inf...

Journal: :Journal of the Air & Waste Management Association 2015
Rodney Bryant Matthew Bundy Ruowen Zong

UNLABELLED A natural gas burner has been used as a precise and accurate source for generating large quantities of carbon dioxide (CO2) to evaluate emissions measurements at near-industrial scale. Two methods for determining carbon dioxide emissions from stationary sources are considered here: predicting emissions based on fuel consumption measurements-predicted emissions measurements, and direc...

2016
Ye Duan Hailin Mu Nan Li

According to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories (IPCC 2006) and based on the production technology and products, this paper has calculated CO2 emissions from industrial processes and product use (IPPU), which involves the individual and the summation of five major IPUU CO2 emissions industrial departments. As there is a classic environmental Kuznets curve between I...

2007
Liqiang Duan Yongping Yang

This paper studies different IGCC systems with CO2 recovery. In order to effectively reduce CO2 emissions from the IGCC system, several kinds of IGCC systems with quasizero CO2 emissions have been studied in this paper. The key parameters affecting the IGCC systems’ performance have been analyzed and compared. The systems’ performances have been investigated based on comparison of different IGC...

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