Results 1 to 10 of about 25,657 (311)

Reassessing the warming impact of methane emissions from Irish livestock using GWP*: historical trends and sustainable futures [PDF]

Irish Journal of Agricultural and Food Research
Methane from livestock production contributes significantly to Ireland’s greenhouse gas emissions. Methane emissions are generally expressed as carbon dioxide equivalents (CO2e) using the global warming potential (GWP) metric, but this conversion may ...
P. McKenna, S. Banwart
doaj   +2 more sources

The role of environmental impact in healthcare providers’ choices of inhalers for treatment of asthma and COPD: a discrete choice experiment

BMC Primary Care
Background Pressurised metered-dose inhalers (pMDIs), often prescribed for the treatment of COPD and asthma have a high global warming potential (GWP) compared to dry powder inhalers (DPIs) and soft-mist inhalers.
I. G. Arslan, M. Vervloet, E. W. de Bekker-Grob, K. Hek, B. J. Knottnerus, C. Wagner, L. van Eikenhorst   +6 more
doaj   +1 more source

On the GWP of focusing energy-ciritical inhomogeneous NLS

, 2019
We consider the focussing energy-critical inhomogeneous nonlinear Schrödinger equation: $$ iu_t + Δu + g|u|^2u = 0, u(0)= φ\in \dot{H}^1,\;\; 0 \le g_i \le |x|g \le g_s.$$ On the road map of Kenig-Merle \cite{km} we show the global well-posedness and scattering of radial solutions under energy condition $$E_g(φ) < E_g(Q),\;\;\mbox{and}\;\; g_s\|φ\|_{
Cho, Yonggeun, Hong, Seokchang, Lee, Kiyeon   +2 more
openaire   +2 more sources

R-454C, R-459B, R-457A and R-455A as low-GWP replacements of R-404A: Experimental evaluation and optimization

International journal of refrigeration, 2019
This work evaluates R-454C, R-459B, R-457A and R-455A as R-404A low-GWP substitutes in a stand-alone commercial refrigeration system for fresh product under ISO 23953-2. System is tested with and without receiver.
R. Llopis, D. Calleja-Anta, D. Sánchez, L. Nebot-Andrés, Jesús Catalán-Gil, R. Cabello   +5 more
semanticscholar   +1 more source

Towards a low CO2 emission building material employing bacterial metabolism (2/2): Prospects for global warming potential reduction in the concrete industry.

PLoS ONE, 2019
The production of concrete is one of the most significant contributors to global greenhouse gas emissions. This work focuses on bio-cementation-based products and their potential to reduce global warming potential (GWP).
Anders Myhr, Frida Røyne, Andreas S Brandtsegg, Catho Bjerkseter, Harald Throne-Holst, Anita Borch, Alexander Wentzel, Anja Røyne   +7 more
doaj   +1 more source

Disparities in low-carbon concrete GWP at the metropolitan level in the United States

npj Materials Sustainability
The specification of Global Warming Potential (GWP) targets for low-carbon concrete is essential to guide decarbonization efforts for the built environment.
Jonathan Michael Broyles, Juan Pablo Gevaudan   +1 more
doaj   +1 more source

Refrigerant R32 as lower GWP working fluid in residential air conditioning systems in Europe and the USA

, 2017
Because air conditioning and heat pump systems contribute greatly to greenhouse gas emissions, equipment with both lower global warming potential (GWP) working fluids and a higher level of performance should be used.
A. Mota-Babiloni, J. Navarro-Esbrí, Pavel Makhnatch, Francisco Molés   +3 more
semanticscholar   +1 more source

Greenhouse gas emissions from concrete can be reduced by using mix proportions, geometric aspects, and age as design factors

Environmental Research Letters, 2015
With increased awareness of the emissions of greenhouse gases (GHGs) and the significant contribution from the cement industry, research efforts are being advanced to reduce the impacts associated with concrete production and consumption.
Sabbie A Miller, Arpad Horvath, Paulo J M Monteiro, Claudia P Ostertag   +3 more
doaj   +1 more source

Identifying opportunities for nature-based solutions with geospatialized life cycle assessments and fine-scale socioecological data

Environmental Research Letters
As we increasingly understand the impact that land management intensification has on local and global climate, the call for nature-based solutions (NbS) in agroecosystems has expanded. Moreover, the pressing need to determine when and where NbS should be
Gabriela Shirkey, Annick Anctil, Ranjeet John, Venkatesh Kolluru, Leah Mungai, Herve Kashongwe, Lauren T Cooper, Ilke Celik, Joshua B Fisher, Jiquan Chen   +9 more
doaj   +1 more source

United States dairy farms and global warming

Journal of Dairy Science
: Several metrics have been developed for combining the warming effects of various GHG. The metric used can affect the life cycle assessment and comparison of dairy production systems due to the weighting placed on long- versus short-lived gases in the ...
C. Alan Rotz, Frank Mitloehner
doaj   +1 more source