scholarly journals Sustainable Aviation—Hydrogen Is the Future

2022 ◽  
Vol 14 (1) ◽  
pp. 548
Author(s):  
Talal Yusaf ◽  
Louis Fernandes ◽  
Abd Rahim Abu Talib ◽  
Yazan S. M. Altarazi ◽  
Waleed Alrefae ◽  
...  
Keyword(s):  
Global Warming ◽  
Value Chain ◽  
Alternative Energy ◽  
Aviation Industry ◽  
Suitable Alternative ◽  
Energy Needs ◽  
Hydrogen Technology ◽  
Performance And Emissions ◽  
Private And Public

As the global search for new methods to combat global warming and climate change continues, renewable fuels and hydrogen have emerged as saviours for environmentally polluting industries such as aviation. Sustainable aviation is the goal of the aviation industry today. There is increasing interest in achieving carbon-neutral flight to combat global warming. Hydrogen has proven to be a suitable alternative fuel. It is abundant, clean, and produces no carbon emissions, but only water after use, which has the potential to cool the environment. This paper traces the historical growth and future of the aviation and aerospace industry. It examines how hydrogen can be used in the air and on the ground to lower the aviation industry’s impact on the environment. In addition, while aircraft are an essential part of the aviation industry, other support services add to the overall impact on the environment. Hydrogen can be used to fuel the energy needs of these services. However, for hydrogen technology to be accepted and implemented, other issues such as government policy, education, and employability must be addressed. Improvement in the performance and emissions of hydrogen as an alternative energy and fuel has grown in the last decade. However, other issues such as the storage and cost and the entire value chain require significant work for hydrogen to be implemented. The international community’s alternative renewable energy and hydrogen roadmaps can provide a long-term blueprint for developing the alternative energy industry. This will inform the private and public sectors so that the industry can adjust its plan accordingly.

scholarly journals Short-Term and Long-Term Feedstock Bio Jet Fuel for Green Environment of Air Transport in Climate Change Awareness

2012 ◽  
Vol 225 ◽  
pp. 572-577 ◽  
Author(s):  
Hazariah Mohd Noh ◽  
Nurul Ain Md Zulkifly
Keyword(s):  
Alternative Energy ◽  
Air Transportation ◽  
Jet Fuel ◽  
Transportation Systems ◽  
Air Transport ◽  
Aviation Industry ◽  
Economic Downturn ◽  
Short Term ◽  
Carbon Dioxide Co2

Air transportation and manageable cost is the key to determine the smooth running of the airlines. Today, the trend is changing with the environment generally and sustainability standards specifically. Responsibility towards environmental issues, in conjunction with safety and security, remains an essential promise for the aviation industry, even in the face of the economic downturn. IATA’s vision is for carbon-neutral growth on the way to a zero-emission future. This is being implemented through IATA’s four-pillar strategy: investing in technology, flying planes effectively, building efficient infrastructure and using positive economic measures (technology, operations, infrastructure and economic instruments). This paper will focus in the projection on biofuel as an alternative energy compromise reduction in carbon dioxide (CO2) emission in overview through short-term and long-term feedstock biomass. As environmental concerns are becoming clearer in general transportation systems, air transportation generates for its presence which must be considered in strategic planning development for the bio jet fuel to be implemented in near future in air transport operations for tenable greener skies.

Long-Term Increase in Hibernating Bats in Swedish Mines — Effect of Global Warming?

2019 ◽  
Vol 20 (2) ◽  
pp. 421 ◽  
Author(s):  
Jens Rydell ◽  
Johan Eklöf ◽  
Hans Fransson ◽  
Sabine Lind
Keyword(s):  
Global Warming

Configurations to Superior Environmental Innovation Strategy: A Both–And Approach

2021 ◽  
pp. 108602662110316
Author(s):  
Tiziana Russo-Spena ◽  
Nadia Di Paola ◽  
Aidan O’Driscoll
Keyword(s):  
Climate Change ◽  
Value Chain ◽  
Critical Role ◽  
Well Being ◽  
Point Of View ◽  
Future Generations ◽  
Innovation Strategy ◽  
Environmental Innovation ◽  
Data Set

An effective climate change action involves the critical role that companies must play in assuring the long-term human and social well-being of future generations. In our study, we offer a more holistic, inclusive, both–and approach to the challenge of environmental innovation (EI) that uses a novel methodology to identify relevant configurations for firms engaging in a superior EI strategy. A conceptual framework is proposed that identifies six sets of driving characteristics of EI and two sets of beneficial outcomes, all inherently tensional. Our analysis utilizes a complementary rather than an oppositional point of view. A data set of 65 companies in the ICT value chain is analyzed via fuzzy-set comparative analysis (fsQCA) and a post-QCA procedure. The results reveal that achieving a superior EI strategy is possible in several scenarios. Specifically, after close examination, two main configuration groups emerge, referred to as technological environmental innovators and organizational environmental innovators.

scholarly journals Influence of the Environment on the Reliability of Security Magnetic Contacts

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 401
Author(s):  
Martin Boros ◽  
Andrej Velas ◽  
Viktor Soltes ◽  
Jacek Dworzecki
Keyword(s):  
Global Warming ◽  
Extreme Conditions ◽  
Alarm System ◽  
Test Device ◽  
Reaction Distance ◽  
Ambient Temperatures ◽  
Thermal Chamber

Magnetic contacts are one of the basic components of an alarm system, providing access to buildings, especially windows and doors. From long-term reliability tests, it can be concluded that magnetic contacts show sufficient reliability. Due to global warming, we can measure high as well as low ambient temperatures in the vicinity of magnetic contacts, which can directly affect their reliability. As part of partial tests, research into the reliability of magnetic contacts, we created a test device with which their reaction distance was examined under extreme conditions simulated in a thermal chamber. The results of the practical tests have yielded surprising results.

scholarly journals Circular Agreements—Exploring the Role of Agreements and Deals as a Political Tool for a Circular Economy

2021 ◽  
Author(s):  
Nils Johansson
Keyword(s):  
Value Chain ◽  
Circular Economy ◽  
Policy Instruments ◽  
Alternative Form ◽  
Advantages And Disadvantages ◽  
Free Rider Problem ◽  
Political Governance ◽  
The Eu

AbstractA problem for a circular economy, embedded in its policies, tools, technologies and models, is that it is driven by the interests and needs of producers, rather than customers and users. This opinion paper focuses on an alternative form of governance—agreements, which thanks to their bargaining approach brings actors from across the value chain into the policy process. The purpose of this opinion paper is to uncover and analyse the potential of such agreements for a circular economy. Circular agreements aim at increasing the circulation of materials and are an emerging form of political governance within the EU. These agreements have different names, involve different actors and govern in different ways. However, circular agreements seem to work when other types of regulations fail to establish circulation. These agreements bring actors together and offer a platform for negotiating how advantages and disadvantages can be redistributed between actors in a way that is more suitable for a circular economy. However, circular agreements are dependent on other policy instruments to work and can generate a free-rider problem with uninvolved actors. The agreements may also become too detailed and long term, which leads to problem shifting and lock-ins, respectively.

The Southern Ocean benthic fauna and climate change: a historical perspective

1992 ◽  
Vol 338 (1285) ◽  
pp. 299-309 ◽  
Keyword(s):  
Global Warming ◽  
Southern Ocean ◽  
Environmental Change ◽  
Benthic Communities ◽  
Benthic Fauna ◽  
Marine Fauna ◽  
Short Term Change ◽  
Term Change ◽  
Continental Ice Sheets

Environmental change is the norm and it is likely that, particularly on the geological timescale, the temperature regime experienced by marine organisms has never been stable. These temperature changes vary in timescale from daily, through seasonal variations, to long-term environmental change over tens of millions of years. Whereas physiological work can give information on how individual organisms may react phenotypically to short-term change, the way benthic communities react to long-term change can only be studied from the fossil record. The present benthic marine fauna of the Southern Ocean is rich and diverse, consisting of a mixture of taxa with differing evolutionary histories and biogeographical affinities, suggesting that at no time in the Cenozoic did continental ice sheets extend sufficiently to eradicate all shallow-water faunas around Antarctica at the same time. Nevertheless, certain features do suggest the operation of vicariant processes, and climatic cycles affecting distributional ranges and ice-sheet extension may both have enhanced speciation processes. The overall cooling of southern high-latitude seas since the mid-Eocene has been neither smooth nor steady. Intermittent periods of global warming and the influence of Milankovitch cyclicity is likely to have led to regular pulses of migration in and out of Antarctica. The resultant diversity pump may explain in part the high species richness of some marine taxa in the Southern Ocean. It is difficult to suggest how the existing fauna will react to present global warming. Although it is certain the fauna will change, as all faunas have done throughout evolutionary time, we cannot predict with confidence how it will do so.

scholarly journals Risk Profiles Along the Lifecycle in Dynamic Markets

2015 ◽  
Vol 6 (3) ◽  
pp. 35-46
Author(s):  
Tamas Koplyay ◽  
Brian Mitchell ◽  
Sorin Cohn ◽  
Maria Fekete ◽  
Abdelkader Jazouli
Keyword(s):  
Value Chain ◽  
Critical Role ◽  
Distribution Channel ◽  
Operating Mode ◽  
Life And Death ◽  
Dynamic Markets ◽  
Start Up ◽  
Distribution Channel Management ◽  
A Company

Abstract That supply chain management and logistics are a determining factor for the long term success of a company was well documented by Forrester over a half century ago [1], with the importance of the statement only growing through the intervening years.Whether consciously factored into the operating mode or not, logistics and distribution channel management plays a critical role in the life, and death, of a firm. From the rudimentary beginnings of the start-up company to the hectic world of the growth company and onto the relatively secure existence in mature markets, the value chain consisting of logistics and distribution channel linkages follows the firm, until it solidifies into immutable form of the mature value chain and begins to exert an inexorable pressure on the survival of the entire chain, and conversely the chain imposes its will on the members. The emergence of mature industry value chains is often driven by the need to monopolistically control logistics and distribution channels which provides a competitive advantage but also introduces a serious exposure to pending shock loadings of the chain.

Sustainability Assessment of Aviation Fuel Blends

2021 ◽  
Author(s):  
Cherie Gambino ◽  
T. Agami Reddy
Keyword(s):  
Sustainability Assessment ◽  
Monte Carlo Analysis ◽  
Aviation Fuel ◽  
Aviation Industry ◽  
Fuel Blends ◽  
Transportation Investment ◽  
Employment Generation ◽  
The Military ◽  
Cost Of Transportation

Abstract Stakeholders in the aviation industry committed to a goal of 50% reduction in carbon emissions by the year 2050, to be achieved by reducing emissions 1.5% each year from 2020 onwards. There are multiple pathways to achieve this goal however; with, the most promising technology being Sustainable Aviation Fuels (SAF), which are biofuels blended with kerosene. As the industry shifts towards SAF, it is important to evaluate these fuels in terms of their long-term sustainability, and this is the objective of the current study. Sixteen types of fuels were assessed which include fossil, natural gas, electric, and SAF. A Multi Criterion Decision Making methodology was adopted which considers three categories, namely environmental, economic, and social aspects which in turn are broken up into 8 indicators in all (such as ecological footprints, cost of transportation, investment cost, operating costs, employment generation, and health & safety). A Monte Carlo analysis was also performed to analyze sensitivity of the results to the weights attributed to the three categories. The most sustainable fuel was found to be Hydrogen, with a score of 0.91 out of 1.0. The least sustainable were determined to be the military kerosene-based fuels (with the experimental fuel JP-8 + 100LT being the poorest with a normalized score of 0.50).

Sign in / Sign up

Export Citation Format

Share Document