نتایج جستجو برای: co2 emissions

تعداد نتایج: 125911  

2013
Eline Jonkers Gerdien Klunder

Applications of Information and Communication Technologies (ICT) have been identified to have a significant contribution to reduce energy consumption and CO2 emissions in the field of transport. The mechanisms by which ICT have an impact on CO2 emissions can be very complex, and calculating this impact requires various models (e.g. traffic and emission models). Today, an integrated and harmoniz...

2014
X. Zhang K. R. Gurney P. Rayner Y. Liu S. Asefi-Najafabady

Errors in the specification or utilization of fossil fuel CO2 emissions within carbon budget or atmospheric CO2 inverse studies can alias the estimation of biospheric and oceanic carbon exchange. A key component in the simulation of CO2 concentrations arising from fossil fuel emissions is the spatial distribution of the emission near coastlines. Regridding of fossil fuel CO2 emissions (FFCO2) f...

2012
Hye Jeon Hyo Seon Park

Environmental pollution problems have been globally main concern in all fields including economy, society and culture into the 21 century. Beginning with the Kyoto Protocol, the reduction on the emissions of greenhouse gas such as CO2 and SOX has been a principal challenge of our day. As most buildings unlike durable goods in other industries have a characteristic and long life cycle, they cons...

Journal: :Journal of environmental sciences 2016
Shuang Yang Wei Yang Guojun Chen Xuan Fang Chengfu Lv Jiaai Zhong Lianhua Xue

Greenhouse gas (GHG) emissions from oil and gas systems are an important component of the GHG emission inventory. To assess the carbon emissions from oilfield-produced water under atmospheric conditions correctly, in situ detection and simulation experiments were developed to study the natural release of GHG into the atmosphere in the Shengli Oilfield, the second largest oilfield in China. The ...

2010
Henry Dannenberg Wilfried Ehrenfeld

Since the introduction of the European CO2 emissions trading system (EU ETS), the development of CO2 allowance prices is a new risk factor for enterprises taking part in this system. In this paper, we analyze how risk emerging from emissions trading can be considered in the stochastic profit and loss planning of corporations. Therefore we explore which planned figures are affected by emissions ...

Journal: :Environmental pollution 2002
B Koerner J Klopatek

Recent research has shown the Phoenix, AZ metropolitan region to be characterized by a CO2 dome that peaks near the urban center. The CO2 levels, 50% greater than the surrounding non-urban areas, have been attributed to anthropogenic sources and the physical geography of the area. We quantified sources of CO2 emissions across the metropolitan region. Anthropogenic CO2 emission data were obtaine...

2004
Richard Jasoni Chad Kane Cary Green Ellen Peffley David Tissue Leslie Thompson Paxton Payton Paul W. Paré

Elevated atmospheric CO2 concentrations ([CO2]) have been hypothesized to increase photosynthesis rates and volatile organic compound (VOC) emissions; however, field measurements from a select group of conifer and angiosperm trees have shown that VOC emissions are in fact not affected or reduced by elevated CO2 levels. To broaden the understanding of how different plant species respond to eleva...

2005
H. Pathak C. Li R. Wassmann

The Denitrification and Decomposition (DNDC) model was evaluated for its ability to simulate methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2) emissions from Indian rice fields with various management practices. The model was calibrated and validated for field experiments in New Delhi, India. The observed yield, N uptake and greenhouse gas (GHG) emissions were in good agreement with t...

2004
Paul Leahy Ger Kiely Todd M. Scanlon

[1] We describe a unique, one year investigation of CO2 and N2O fluxes over a fertilized grassland in Ireland using two eddy covariance systems. As the global warming potential (GWP) of N2O is 296 (100 year time horizon), relatively small N2O emissions have a potentially large impact on overall radiative forcing. Therefore nitrogen fertilizer application practices may possibly turn a site with ...

2001
Timothy L. Johnson David W. Keith

The decoupling of fossil-fueled electricity production from atmospheric carbon dioxide emissions via CO2 capture and sequestration (CCS) is increasingly regarded as an important means of mitigating climate change at a reasonable cost. Engineering analyses of CO2 mitigation typically compare the cost of electricity for a base generation technology to that from a similar plant with CO2 capture an...

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