Global warming potential of intensive wheat production in the Yaqui Valley, Mexico: a resource for the design of localized mitigation strategies

2016 ◽  
Vol 127 ◽  
pp. 522-532 ◽  
Author(s):  
María Fernanda Lares-Orozco ◽  
Agustín Robles-Morúa ◽  
Enrico A. Yepez ◽  
Robert M. Handler
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Mitigation Strategies ◽  
Wheat Production ◽  
Yaqui Valley

Do Mitigation Strategies Reduce Global Warming Potential in the Northern U.S. Corn Belt?

2011 ◽  
Vol 40 (5) ◽  
pp. 1551-1559 ◽  
Author(s):  
Jane M.-F. Johnson ◽  
David W. Archer ◽  
Sharon L. Weyers ◽  
Nancy W. Barbour
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Mitigation Strategies ◽  
Corn Belt

scholarly journals Environmental Impact Assessments of Integrated Food and Non-Food Production Systems in Italy and Denmark

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 849
Author(s):  
Lisa Mølgaard Lehmann ◽  
Magdalena Borzęcka ◽  
Katarzyna Żyłowska ◽  
Andrea Pisanelli ◽  
Giuseppe Russo ◽  
...  
Keyword(s):  
Global Warming ◽  
Life Cycle ◽  
Greenhouse Gas ◽  
Global Warming Potential ◽  
Production System ◽  
Food Production ◽  
Production Systems ◽  
Silvopastoral System ◽  
Wheat Production ◽  
Conventional Production

Given the environmental footprints of the conventional agriculture, it is imperative to test and validate alternative production systems, with lower environmental impacts to mitigate and adapt our production systems. In this study, we identified six production systems, four in Italy and two in Denmark, to assess the environmental footprint for comparison among the production systems and additionally with conventional production systems. SimaPro 8.4 software was used to carry out the life cycle impact assessment. Among other indicators, three significantly important indicators, namely global warming potential, acidification, and eutrophication, were used as the proxy for life cycle impact assessment. In Italy, the production systems compared were silvopastoral, organic, traditional, and conventional olive production systems, whereas in Denmark, combined food and energy production system was compared with the conventional wheat production system. Among the six production systems, conventional wheat production system in Denmark accounted for highest global warming potential, acidification, and eutrophication. In Italy, global warming potential was highest in traditional agroforestry and lowest in the silvopastoral system whereas acidification and eutrophication were lowest in the traditional production system with high acidification effects from the silvopastoral system. In Italy, machinery use contributed the highest greenhouse gas emissions in silvopastoral and organic production systems, while the large contribution to greenhouse gas emissions from fertilizer was recorded in the traditional and conventional production systems. In Denmark, the combined food and energy system had lower environmental impacts compared to the conventional wheat production system according to the three indicators. For both systems in Denmark, the main contribution to greenhouse gas emission was due to fertilizer and manure application. The study showed that integrated food and non-food systems are more environmentally friendly and less polluting compared to the conventional wheat production system in Denmark with use of chemical fertilizers and irrigation. The study can contribute to informed decision making by the land managers and policy makers for promotion of environmentally friendly food and non-food production practices, to meet the European Union targets of providing biomass-based materials and energy to contribute to the bio-based economy in Europe and beyond.

Atmosphere-based US emission estimates of SF6 for 2007 - 2018

2021 ◽  
Author(s):  
Lei Hu ◽  
Stephen Montzka ◽  
Ed Dlugokencky ◽  
Phil DeCola ◽  
Debrah Ottinger ◽  
...  
Keyword(s):  
Global Warming ◽  
Greenhouse Gas ◽  
Global Warming Potential ◽  
Sulfur Hexafluoride ◽  
Atmospheric Transport ◽  
Mitigation Strategies ◽  
Reference Network ◽  
Atmospheric Lifetime ◽  
The Us ◽  
Us Epa

<p>Sulfur hexafluoride (SF<sub>6</sub>) is a potent greenhouse gas (GHG) that is primarily emitted from electrical circuit breakers and heavy-duty gas-insulated switchgears in electric transmission and distribution equipment, magnesium production and processing, and electronics production. It has a 100-year global warming potential of 23500 and an atmospheric lifetime of 850 (580 - 1400) years. Because of its extremely large global warming potential and long atmospheric lifetime, its emissions, while currently small, have an outsized influence on changing climate over the long term.  However, current US emissions of SF<sub>6</sub> are uncertain. The US SF<sub>6</sub> consumption that was used to estimate SF<sub>6</sub> emissions in the US EPA national GHG reporting to the UNFCCC has an uncertainty of 30 – 60%, depending on whether to use the US SF<sub>6</sub> supplier reports or user reports. With different inventory methodologies, the national emissions estimates of SF<sub>6</sub> from the EDGAR and US EPA’s GHG inventories differ by more than a factor of 4. Here, we will present the first detailed U.S. national and regional emissions of SF<sub>6</sub> that were derived from an inverse analysis of an extensive flask-air sampling network from the US NOAA’s Global Greenhouse Gas Reference Network and high-resolution atmospheric transport simulations for 2007 - 2018. We will discuss our atmosphere-based top-down emission estimates in comparison with the existing bottom-up emission inventories, our derived seasonal variation of SF<sub>6</sub> emissions, and associated implications regarding each industry’s contribution to emissions and optimal emissions mitigation strategies. Because atmospheric SF<sub>6</sub> measurements are also used to assess atmospheric transport errors assuming no biases in SF<sub>6</sub> emissions reported by the EDGAR inventory, our analysis also has important implications on limitations in such applications.</p>

A review on the global warming potential of cleaner composting and mitigation strategies

2017 ◽  
Vol 146 ◽  
pp. 149-157 ◽  
Author(s):  
Cassendra Phun Chien Bong ◽  
Li Yee Lim ◽  
Wai Shin Ho ◽  
Jeng Shiun Lim ◽  
Jiří Jaromír Klemeš ◽  
...  
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Mitigation Strategies

scholarly journals Variation in Soil Properties Regulate Greenhouse Gas Fluxes and Global Warming Potential in Three Land Use Types on Tropical Peat

Atmosphere ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 465 ◽  
Author(s):  
Kiwamu Ishikura ◽  
Untung Darung ◽  
Takashi Inoue ◽  
Ryusuke Hatano
Keyword(s):  
Global Warming ◽  
Soil Moisture ◽  
Groundwater Level ◽  
Global Warming Potential ◽  
C:N Ratio ◽  
Co2 Flux ◽  
Nitrate Content ◽  
N2o Flux ◽  
Ch4 Flux ◽  
In The Beginning

This study investigated spatial factors controlling CO2, CH4, and N2O fluxes and compared global warming potential (GWP) among undrained forest (UDF), drained forest (DF), and drained burned land (DBL) on tropical peatland in Central Kalimantan, Indonesia. Sampling was performed once within two weeks in the beginning of dry season. CO2 flux was significantly promoted by lowering soil moisture and pH. The result suggests that oxidative peat decomposition was enhanced in drier position, and the decomposition acidify the peat soils. CH4 flux was significantly promoted by a rise in groundwater level, suggesting that methanogenesis was enhanced under anaerobic condition. N2O flux was promoted by increasing soil nitrate content in DF, suggesting that denitrification was promoted by substrate availability. On the other hand, N2O flux was promoted by lower soil C:N ratio and higher soil pH in DBL and UDF. CO2 flux was the highest in DF (241 mg C m−2 h−1) and was the lowest in DBL (94 mg C m−2 h−1), whereas CH4 flux was the highest in DBL (0.91 mg C m−2 h−1) and was the lowest in DF (0.01 mg C m−2 h−1), respectively. N2O flux was not significantly different among land uses. CO2 flux relatively contributed to 91–100% of GWP. In conclusion, it is necessary to decrease CO2 flux to mitigate GWP through a rise in groundwater level and soil moisture in the region.

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