scholarly journals Insights into the Regional Greenhouse Gas (GHG) Emission of Industrial Processes: A Case Study of Shenyang, China

2014 ◽  
Vol 6 (6) ◽  
pp. 3669-3685 ◽  
Author(s):  
Zuoxi Liu ◽  
Huijuan Dong ◽  
Yong Geng ◽  
Chengpeng Lu ◽  
Wanxia Ren
Keyword(s):  
Greenhouse Gas ◽  
Industrial Processes ◽  
Ghg Emission

Estimation of greenhouse gas (GHG) emission and energy use efficiency (EUE) analysis in rainfed canola production (case study: Golestan province, Iran)

Energy ◽  
2016 ◽  
Vol 116 ◽  
pp. 694-700 ◽  
Author(s):  
Hossein Kazemi ◽  
Saeid Hassanpour Bourkheili ◽  
Behnam Kamkar ◽  
Afshin Soltani ◽  
Kambiz Gharanjic ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Energy Use ◽  
Ghg Emission ◽  
Energy Use Efficiency ◽  
Golestan Province ◽  
Use Efficiency

scholarly journals Eco-efficient agriculture for producing higher yields with lower greenhouse gas emissions: a case study of intensive irrigation wheat production in China

2013 ◽  
Vol 10 (10) ◽  
pp. 16879-16902 ◽  
Author(s):  
Z. L. Cui ◽  
Y. L. Ye ◽  
W. Q. Ma ◽  
X. P. Chen ◽  
F. S. Zhang
Keyword(s):  
Grain Yield ◽  
Greenhouse Gas ◽  
Ghg Emissions ◽  
Triticum Aestivum L ◽  
Crop Productivity ◽  
Yield Response ◽  
Ghg Emission ◽  
Scientific Attention ◽  
On Farm

Abstract. Although the concept of producing higher yields with reduced greenhouse gas (GHG) emissions is a goal that attracts increasing public and scientific attention, the tradeoff between crop productivity and GHG emissions in intensive agricultural production is not well understood. In this study, we investigated 33 sites of on-farm experiments to evaluate the tradeoff between grain yield and GHG emissions using two systems (conventional practice, CP; high-yielding systems, HY) of intensive irrigation wheat (Triticum aestivum L.) in China. Furthermore, we discussed the potential to produce higher yields with lower GHG emissions based on a survey of 2938 farmers. However, in both the HY and CP systems, wheat grain yield response to GHG emissions fit a linear-plateau model, whereas the curve for grain yield from the HY system was always higher than that from the CP system. Compared to the CP system, grain yield was 44% (2.6 Mg ha–1) higher in the HY system, while GHG emissions increased by only 2.5%, and GHG emission intensity was reduced by 29%. The current intensive irrigation wheat system with farmers' practice had a median yield and maximum GHG emission rate of 6.05 Mg ha–1 and 4783 kg CO2 eq ha–1, respectively; however, this system can be transformed to maintain yields while reducing GHG emissions by 40% (5.96 Mg ha–1, and 2890 kg CO2 eq ha–1). Further, the HY system was found to increase grain yield by 41% with a simultaneous reduction in GHG emissions by 38% (8.55 Mg ha–1, and 2961 kg CO2 eq ha–1, respectively). In the future, we suggest moving the tradeoff relationships and calculations from grain yield and GHG emissions, to new measures of productivity and environmental protection using innovative management technologies. This shift in focus is critical to achieve food and environmental security.

scholarly journals Customized Approach to Greenhouse Gas Emissions Calculations in Railway Freight Transport

2021 ◽  
Vol 11 (19) ◽  
pp. 9077
Author(s):  
Jan Chocholac ◽  
Roman Hruska ◽  
Stanislav Machalik ◽  
Dana Sommerauerova ◽  
Jiri Krupka
Keyword(s):  
Greenhouse Gas ◽  
Significant Contribution ◽  
Ghg Emissions ◽  
Freight Transport ◽  
Ghg Emission ◽  
Railway Freight ◽  
Comparative Content ◽  
Logistic Planning ◽  
Railway Freight Transport

The topic of global warming is and will continue to be a crucial topic of this millennium. Freight transport, as a producer of greenhouse gas (hereinafter GHG) emissions, makes a significant contribution to the greenhouse effect. Large supply chains and large volumes of freight transport, which imply the production of significant volumes of GHG emissions, characterize the automotive industry (hereinafter AI). Thanks to these premises, it is necessary to seek and develop tools for reducing the volume of GHG emissions produced from the logistic activities of the AI, while maintaining the required level of logistic services. The assumptions for the calculation of GHG emissions from railway freight transport (hereinafter RFT) in the AI were identified through the use of semi-structured interviewing. Available railway freight GHG emission calculators were identified and analyzed from the perspective of suitability for the AI using a comparative content analysis. The main result of this manuscript is the proposal of a fully customized approach to GHG emission calculations in RFT for the AI. This approach was proposed, applied, and verified in the form of an interpretative case study. The use of this approach can be expected in support of logistic planning and decision making.

scholarly journals Energy and Greenhouse Gas Savings for LEED-Certified U.S. Office Buildings

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 749
Author(s):  
John H. Scofield ◽  
Susannah Brodnitz ◽  
Jakob Cornell ◽  
Tian Liang ◽  
Thomas Scofield
Keyword(s):  
Greenhouse Gas ◽  
Energy Use ◽  
Energy Savings ◽  
Electric Energy ◽  
Building Energy ◽  
Energy Performance ◽  
Office Buildings ◽  
Ghg Emission ◽  
Site Energy ◽  
New Construction

In this work, we present results from the largest study of measured, whole-building energy performance for commercial LEED-certified buildings, using 2016 energy use data that were obtained for 4417 commercial office buildings (114 million m2) from municipal energy benchmarking disclosures for 10 major U.S. cities. The properties included 551 buildings (31 million m2) that we identified as LEED-certified. Annual energy use and greenhouse gas (GHG) emission were compared between LEED and non-LEED offices on a city-by-city basis and in aggregate. In aggregate, LEED offices demonstrated 11% site energy savings but only 7% savings in source energy and GHG emission. LEED offices saved 26% in non-electric energy but demonstrated no significant savings in electric energy. LEED savings in GHG and source energy increased to 10% when compared with newer, non-LEED offices. We also compared the measured energy savings for individual buildings with their projected savings, as determined by LEED points awarded for energy optimization. This analysis uncovered minimal correlation, i.e., an R2 < 1% for New Construction (NC) and Core and Shell (CS), and 8% for Existing Euildings (EB). The total measured site energy savings for LEED-NC and LEED-CS was 11% lower than projected while the total measured source energy savings for LEED-EB was 81% lower than projected. Only LEED offices certified at the gold level demonstrated statistically significant savings in source energy and greenhouse gas emissions as compared with non-LEED offices.

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