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68 Newest Publications about the topic greenhouse gases

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Active and widespread halogen chemistry in the tropical and subtropical free troposphere [Earth, Atmospheric, and Planetary Sciences]

28-Jul-2015 | Siyuan Wang; Johan A. Schmidt; Sunil Baidar; Sean Coburn; Barbara Dix; Theodore K. Koenig; Eric Apel; Dene Bowdalo; ..., Proceedings of the National Academy of Sciences current issue, 2015

Halogens in the troposphere are increasingly recognized as playing an important role for atmospheric chemistry, and possibly climate. Bromine and iodine react catalytically to destroy ozone (O3), oxidize mercury, and modify oxidative capacity that is relevant for the lifetime of greenhouse gases. ...

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Energies, Vol. 8, Pages 6926-6944: An Environmentally-Friendly Tourist Village in Egypt Based on a Hybrid Renewable Energy System––Part One: What Is the Optimum City?

10-Jul-2015 | Diab, Fahd ; Lan, Hai ; Zhang, Lijun ; Ali, Salwa, Energies, 2015

The main objective of this work is to select the optimum city from five touristic Egyptian cities (Luxor, Giza, Alexandria, Qena and Aswan) to establish an environmentally-friendly tourist village. The selection of the city, according to the economic cost (cost of energy (COE), net present cost ...

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Energies, Vol. 8, Pages 6945-6961: An Environmentally-Friendly Tourist Village in Egypt Based on a Hybrid Renewable Energy System––Part Two: A Net Zero Energy Tourist Village

10-Jul-2015 | Diab, Fahd ; Lan, Hai ; Zhang, Lijun ; Ali, Salwa, Energies, 2015

The main objective of this study is to discuss the economical and the environmental analysis of a net zero energy (NZE) tourist village in Alexandria, Egypt, by maximizing the renewable energy fraction and minimizing the greenhouse gases (GHG) emissions. The hybrid photovoltaics ...

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Energies, Vol. 8, Pages 6627-6640: The Role of Technical Innovation and Sustainability on Energy Consumption: A Case Study on the Taiwanese Automobile Industry

30-Jun-2015 | Chou, Chao-Wu ; Liao, Wen-Chih ; Wu, Simon ; Wee, Hui-Ming, Energies, 2015

The impact of global warming and climate change is one of the most critical challenges of the 21st century. The greenhouse effect caused by technological development and industrial pollution has accelerated the speed of global warming. The continuous improvement in automobile energy consumption ...

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A Large and Deep Root System Underlies High Nitrogen-Use Efficiency in Maize Production

15-May-2015 | Peng Yu et al., PLoS ONE, 2015

by Peng Yu, Xuexian Li, Philip J. White, Chunjian Li Excessive N fertilization results in low N-use efficiency (NUE) without any yield benefits and can have profound, long-term environmental consequences including soil acidification, N leaching and increased production of greenhouse gases. ...

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[Review] Soil and human security in the 21st century

08-May-2015 | Ronald Amundson; Asmeret Asefaw Berhe; Jan W. Hopmans; Carolyn Olson; A. Ester Sztein; Donald L. Sparks, Science , 2015

Human security has and will continue to rely on Earth’s diverse soil resources. Yet we have now exploited the planet’s most productive soils. Soil erosion greatly exceeds rates of production in many agricultural regions. Nitrogen produced by fossil fuel and geological reservoirs of other ...

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Mechanisms for low-frequency variability of summer Arctic sea ice extent [Earth, Atmospheric, and Planetary Sciences]

14-Apr-2015 | Rong Zhang, Proceedings of the National Academy of Sciences current issue, 2015

Satellite observations reveal a substantial decline in September Arctic sea ice extent since 1979, which has played a leading role in the observed recent Arctic surface warming and has often been attributed, in large part, to the increase in greenhouse gases. However, the most rapid decline ...

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Regulation of plasmid‐encoded isoprene metabolism in Rhodococcus, a representative of an important link in the global isoprene cycle

28-Feb-2015 | Andrew T. Crombie, Myriam El Khawand, Virgil A. Rhodius, Kevin A. Fengler, Michael C. Miller, Gregg M. Whited, Terry ..., Environmental Microbiology, 2015

Abstract Emissions of biogenic volatile organic compounds (VOCs), form an important part of the global carbon cycle, comprising a significant proportion of net ecosystem productivity. They impact atmospheric chemistry and contribute directly and indirectly to greenhouse gases. Isoprene, ...

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Energies, Vol. 8, Pages 1628-1643: Life Cycle Assessment of New Oxy-Fuels from Biodiesel-Derived Glycerol

27-Feb-2015 | Asdrubali, Francesco ; Cotana, Franco ; Rossi, Federico ; Presciutti, Andrea ; Rotili, Antonella ; Guattari, Claudia, Energies, 2015

Biodiesel is obtained by the process of transesterification of vegetable oils and animal fats and crude glycerol is the main by-product of the biodiesel manufacturing chain. As a result glycerol production has rapidly increased in the last decades. This work focuses on the development and the ...

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Global emissions of refrigerants HCFC-22 and HFC-134a: Unforeseen seasonal contributions [Earth, Atmospheric, and Planetary Sciences]

09-Dec-2014 | Bin Xiang; Prabir K. Patra; Stephen A. Montzka; Scot M. Miller; James W. Elkins; Fred L. Moore; Elliot L. Atlas; Ben ..., Proceedings of the National Academy of Sciences current issue, 2014

HCFC-22 (CHClF2) and HFC-134a (CH2FCF3) are two major gases currently used worldwide in domestic and commercial refrigeration and air conditioning. HCFC-22 contributes to stratospheric ozone depletion, and both species are potent greenhouse gases. In this work, we study in situ observations of ...

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