نتایج جستجو برای: co2 emissions

تعداد نتایج: 125911  

2015
Marcus Knauf

BACKGROUND The forestry and wood products industries play a significant role in CO2 emissions reduction by increasing carbon stocks in living forest biomass and wood products. Moreover, wood can substitute for fossil fuels. Different methods can be used to assess the impact of regional forestry and wood products industries on regional CO2 emissions. This article considers three of those methods...

2010
M. EBY K. ZICKFELD A. MONTENEGRO D. ARCHER K. J. MEISSNER A. J. WEAVER

Multimillennial simulations with a fully coupled climate–carbon cycle model are examined to assess the persistence of the climatic impacts of anthropogenic CO2 emissions. It is found that the time required to absorb anthropogenic CO2 strongly depends on the total amount of emissions; for emissions similar to known fossil fuel reserves, the time to absorb 50% of the CO2 is more than 2000 yr. The...

According to released official statistics of greenhouse gas emissions in 2010, CO2, which is produced by fossil fuels and industrial processes, accounts for 65 percent of total global greenhouse gas emissions. The transport sector, in turn, is responsible for 23% of CO2 emissions. Researchers have been claiming that car manufacturers have not made significant efforts to reduce the pollution lev...

2006
V. ROUBÍČEK P. PUSTĚJOVSKÁ J. BILÍK

Modern trends in iron metallurgy. Global carbon emissions from iron production. New solution for iron and steelmaking in a way reduce the CO2 emission to the level, where this might be needed in the post Kyoto period. New blast furnace technology, which operate with very low CO2 emissions based on drastically reduced consumption of carbon containing input materials. Injection of reducing gases ...

2012
Thomas Klier Joshua Linn

France, Germany, and Sweden have recently linked vehicle taxes to the carbon dioxide (CO2) emissions rates of passenger vehicles. France has introduced a system of CO2-based purchase taxes and subsidies, whereas Germany and Sweden impose annual circulation (i.e., registration) taxes that are linear functions of CO2 emissions rates. This paper (a) compares the effects of vehicle taxes on registr...

2017
Jennie E. Pryce Matthew J. Bell

In Australia, dairy cattle account for ~12% of the nation’s agricultural greenhouse-gas (GHG) emissions. Genetic selection has had a positive impact, reducingGHGemissions fromdairy systemsmainly due to increased production per cow,which has led to (1) requiring fewer cows to produce the same amount ofmilk and (2) lowering emissions per unit of milk produced (emission intensity). The objective o...

2016
Xia Zhang Kevin R. Gurney Peter Rayner David Baker Yu-ping Liu

Recent advances in fossil fuel CO2 (FFCO2) emission inventories enable sensitivity tests of simulated atmospheric CO2 concentrations to sub-annual variations in FFCO2 emissions and what this implies for the interpretation of observed CO2. Six experiments are conducted to investigate the potential impact of three cycles of FFCO2 emission variability (diurnal, weekly and monthly) using a global t...

2010
Tilottama Ghosh Christopher D. Elvidge Paul C. Sutton Kimberly E. Baugh Benjamin T. Tuttle

The potential use of satellite observed nighttime lights for estimating carbondioxide (CO2) emissions has been demonstrated in several previous studies. However, the procedures for a moderate resolution (1 km 2 grid cells) global map of fossil fuel CO2 emissions based on nighttime lights are still in the developmental phase. We report on the development of a method for mapping distributed (excl...

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 ...

Journal: :international journal of environmental research 2012
a. ataei a. iranmanesh z. rashidi

this study investigated different concepts for natural-gas-fired power plants with the co2capture, and compared them based on the net plant efficiency and emission of co2. the cycles were based ona six oxy-fuel, one post-combustion and two pre-combustion capture concept. this paper presented theresults of an environmental evaluation performed by the application of the life cycle analysis (lca) ...

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