نتایج جستجو برای: co2 emission

تعداد نتایج: 243046  

2014
Yunjing Wang Yoshitsugu Hayashi Jin Chen Qiang Li

Decentralization development and changing urban form will increase the mobility and contribute to global CO2 emissions, in particular for developing countries which are experiencing rapid economic growth and urban expansion. In this paper, an integrated analytical framework, which can quantify the impact of changing urban form on commuting CO2 emissions, is presented. This framework simultaneou...

2017
Rongrong Li Rui Jiang

The carbon dioxide (CO2) emissions caused by the global construction industry account for 36% of the world’s total carbon emissions, and 50% of China’s total carbon emissions. The carbon emissions from Jiangsu Province’s construction industry account for approximately 16% of the total emissions of the Chinese construction industry. Taking the construction industry in Jiangsu Province as our stu...

2010
Kozo YAMAZAKI Satoshi UEMURA Tetsutarou OISHI

In order to search for economically and environmentally optimized fusion reactors, physics properties, engineering designs and the cost of electricity (COE) are evaluated by the PEC (Physics-Engineering-Cost) system code for several magnetic confinement fusion reactors including tokamak (TR), helical (HR) and spherical tokamak (ST) reactors. The life-cycle CO2 emission amounts are also evaluate...

2004
Parvadha Suntharalingam Daniel J. Jacob Paul I. Palmer Jennifer A. Logan Robert M. Yantosca Yaping Xiao Mathew J. Evans David G. Streets Stephanie L. Vay Glen W. Sachse

We use observed CO2:CO correlations in Asian outflow from the TRACE-P aircraft campaign (February-April, 2001), together with a 3-D global chemical transport model (GEOS-CHEM), to constrain specific components of the East Asian CO2 budget including, in particular, Chinese emissions. The CO2/CO emission ratio varies with the source of CO2 (different combustion types vs. the terrestrial biosphere...

2008
Nami Sakai Takeshi Sakai Yuri Aikawa Satoshi Yamamoto

The millimeter-wave rotational emission lines (404 − 303 and 505 − 404) of protonated carbon dioxide, HCO2 (HOCO ), has been detected toward the low-mass class 0 protostar IRAS 04368+2557 in L1527 with the IRAM 30 m telescope. This is the first detection of HCO2 except for the Galactic Center clouds. The column density of HCO2 averaged over the beam size (29 ) is determined to be 7.6 × 10 cm, a...

2009
Varun Dutt

This research improves our understanding of the Stock-Flow (SF) Failure, found to be a robust problem in the perception of accumulation (Cronin, Gonzalez, & Sterman, 2009). We demonstrate the SF Failure with an interactive simulation in a relevant climate change context (Dynamic Climate Change Simulator (DCCS). In DCCS the climate change problem was simplified to an accumulation (stock), CO2 co...

1998

Recent anthropogenic emissions of key atmospheric trace gases (e.g. CO2 and CH4) which absorb infra-red radiation may lead to an increase in mean surface temperatures and potential changes in climate. Although sources of each gas have been evaluated independently, little attention has focused on potential interactions between gases which could influence emission rates. In the current experiment...

2015
Mingxiang Deng Wei Li Yan Hu Robert Lundmark

As a less-developed province that has been chosen to be part of a low-carbon pilot project, Yunnan faces the challenge of maintaining rapid economic growth while reducing CO2 emissions. Understanding the drivers behind CO2 emission changes can help decouple economic growth from CO2 emissions. However, previous studies on the drivers of CO2 emissions in less-developed regions that focus on both ...

2009
Varun Dutt

This research improves our understanding of the Stock-Flow (SF) Failure, found to be a robust problem in the perception of accumulation (Cronin, Gonzalez, & Sterman, 2009). We demonstrate the SF Failure with an interactive simulation in a relevant climate change context (Dynamic Climate Change Simulator (DCCS). In DCCS the climate change problem was simplified to an accumulation (stock), CO2 co...

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