scholarly journals Role of thermal spray in combating climate change

2021 ◽  
Author(s):  
V. Viswanathan ◽  
Nirmal Kumar Katiyar ◽  
Gaurav Goel ◽  
Allan Matthews ◽  
Saurav Goel
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Additive Manufacturing ◽  
Thermal Spray ◽  
Surface Engineering ◽  
Focal Point ◽  
Raw Materials ◽  
Thermal Spraying ◽  
Green Energy ◽  
Hydrogen Gas

AbstractThermal spraying is a scalable surface engineering technique used to add or to restore functionality of a solid surface by applying a coating. Examples of this include protection against wear, erosion, abrasion, and heat. In a specific sense, thermal spraying is particularly used to deposit thermal barrier coatings (TBCs) which finds use in transportation, power generation and automotive sector. As being a surface technique, thermal spraying much like other surface coating techniques can avoid the use of excessive bulk materials and in turn offers longevity to the life of the component, so it already contributes to the reduction of global warming by virtue of avoiding the use of excessive scarce materials and improving fuel efficiency. In terms of its contribution to the cause of global warming, thermal spraying stands in sharp contrast to the energy-intensive processes such as melting, casting, extrusion and welding. With the rise of additive manufacturing, it is possible to use thermal spray to complement that process in many ways and “cold spray additive manufacturing” (CSAM) is already gaining popularity. The thermal spraying technique relies on using selective types of gases—hydrogen being one of them and few types of metals/alloys which are now classed as critical raw materials due to them being on the supply risk register. Efforts to consider recycling and reuse and to find alternatives to these are very timely to continue drawing the advantage of thermal spraying being a relatively green technique. In particular, the green energy initiatives and the drive to develop energy storage and battery technologies could challenge the supply of raw materials such as hydrogen gas and rare earth elements. This underlines the research and development need for alternate materials and processes to address the issue of climate change which is the major focal point of the COP 26 Summit at Glasgow in 2021. The combination of digital technologies and thermal spray coatings will reduce gas, powder and power consumption, which will make this manufacturing process even greener.

Conflict and Cooperation among Sino-US-EU Based on Climate Change

2011 ◽  
Vol 361-363 ◽  
pp. 954-958
Author(s):  
Ya Qiong Wang ◽  
Yao Wen Xue
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Focal Point ◽  
Conflict And Cooperation ◽  
Common Concern ◽  
Developing Trend ◽  
The Common

Global warming is emerging as the common concern of all countries and people on earth. This paper first emphatically analyzes the game process of Sino-US-EU according to the interest and position of the groups at the UN Conference on Climate Change. After that, the paper finds the reason why the three parties failed to reach an agreement and proposes measures to solve the focal point. In the end, this paper prospects the developing trend to the next Climate Change Conference.

scholarly journals Green Energy Technology

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6842
Author(s):  
Wei-Hsin Chen ◽  
Hwai Chyuan Ong ◽  
Shih-Hsin Ho ◽  
Pau Loke Show
Keyword(s):  
Climate Change ◽  
Air Pollution ◽  
Global Warming ◽  
Greenhouse Effect ◽  
Fossil Fuel ◽  
Green Energy ◽  
Energy Utilization ◽  
Energy Technology ◽  
Warming Climate

Our environment is facing several serious challenges from energy utilization, such as fossil fuel exhaustion, air pollution, deteriorated atmospheric greenhouse effect, global warming, climate change, etc[...]

Techland

2021 ◽  
pp. 316-340
Author(s):  
Michelina Occhioni ◽  
Eleonora Paris
Keyword(s):  
Climate Change ◽  
Virtual Worlds ◽  
Raw Materials ◽  
Green Energy ◽  
Pollution Remediation ◽  
Inquiry Based Learning ◽  
School Activities ◽  
Agenda 2030 ◽  
Development Goals ◽  
And Mathematics

Techland is a virtual world completely focused on math and science (geosciences, chemistry, biology) for K6-K8 students, which has been well tested for school activities and projects in an Italian middle school. Recently, Techland has made a slowly transition from a general STEM (science, technology, engineering, and mathematics) world to a more specific and contextualized environment, with the aim to apply scientific concepts to the challenge that our society has to face today: climate change, exploitation of raw materials, pollution/remediation, green energy. Themes like circular and shared economy, sustainability, ONU Agenda 2030 Sustainable Development Goals are becoming more and more important in education. Therefore, Techland virtual environments have been expanded and improved and new environments have been created. An interdisciplinary perspective has been adopted to treat environmental themes using an inquiry-based learning methodology (IBL) adapted to virtual worlds and activities based on collaborative building, storytelling (machinima videos), and gamification.

scholarly journals The evaluation of the use of renewable energy resources

2018 ◽  
Vol 25 (1) ◽  
Author(s):  
Rita Bužinskienė
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Fossil Fuels ◽  
Raw Materials ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Energy Sources ◽  
Final Energy ◽  
Final Energy Consumption

There have been many discussions in Lithuania about a strategy for reducing the impact of climate change. Members of the international community agree that reducing greenhouse gas emissions to the atmosphere is necessary to avoid dangerous climate change. The main greenhouse gas emissions from human activity are carbon dioxide. Carbon dioxide is mainly produced by combustion of fossil fuels, which are currently used: natural gas, coal, oil, peat, etc. Fossil fuels are still the main source of energy. The amount of energy produced and consumption from renewable energy sources (RES) is increasing both in Lithuania and in Europe. According to the Directive (2009/28/EU) Lithuania has a legally binding target in the year 2020. The share of renewable energy would account for at least 23% of the total final energy consumption of the country. The share of renewable energy would account for at least 10% of the final energy consumption in the transport sector. Lithuania achieved its target and this indicator was 23.9% in 2014. According to the Eurostat data, the share of RES produced from renewable energy sources in the total energy balance is increasing annually. In 2007 this indicator was only 4.7% and it has grown 4 times in 2016. The production of electricity from renewable energy sources satisfied the country’s energy demand by 18.9% in Lithuania. This is the best index so far. Wind energy is the most popular type of green energy, which has been growing at a rate of 5 times in this period. Promotion of the use of renewable resources is provided in the Republic of Lithuania Law on Renewable Energy and the long-term development of the use of renewable resources is provided for in the National Energy Strategy. At this moment Lithuania is a fuel importing country, but in the future Lithuania should produce about 70% of electricity itself. It is forecasted that in 2020 electricity generation in the country should make up 35% of the demand, in 2030 it should be 70%, and in 2050 it should reach 100%. From renewables we should receive a large, almost 80% share of energy. And gas will be a transitional fuel by 2050. The project of strategy states that energy from renewable sources will become a major component of all sectors: electricity, heat, cooling and transport. The objective is to achieve a 30% share of renewables in the final energy consumption balance in 2020, 45% in 2030, and 80% in 2050. The renewables should produce all heat energy and the share of green energy in transport should reach 50% at the end of 2050. The article focuses on the use of the potential of renewable energy sources from agricultural raw materials and their waste. The surplus of agricultural production makes it necessary to look for opportunities to reduce environmental pollution. The aim of the article is to assess the use of potential of renewable energy sources in Lithuania. The results of the analysis showed that increasing energy production is possible not only using wind, solar, water or geothermal energy, but by processing traditional agricultural and animal products and their waste: straw, grain crops, livestock or bird’s excrement, etc. It is recommended to look at the unconventional potential of raw materials, such as sewage sludge, spirits, molasses, etc. The use of biomass has potentially revealed alternatives to biofuels that underpin the use of different generations of biofuels. The use of biofuels in the long term should contribute to the slowdown in climate change.

scholarly journals Integrasi Low Carbon Education Dalam Kurikulum Pendidikan Calon Guru IPA di Indonesia sebagai Upaya Revitalisasi Peran Pendidikan IPA dalam Merespons Tantangan Ekologis di Masa Depan

2020 ◽  
Vol 4 (2) ◽  
pp. 231-243
Author(s):  
Muhammad Syahruddin Amin* ◽  
Anna Permanasari ◽  
Ida Hamidah
Keyword(s):  
Climate Change ◽  
Science Education ◽  
Global Warming ◽  
Environmental Education ◽  
Co2 Emission ◽  
Green Energy ◽  
Comparative Approach ◽  
Low Carbon ◽  
Study Program ◽  
Education Study

Global warming and climate change is the main environmental problems globally. The triggers of this problem is the consumptive behavior and wasteful energy in the community which causes the CO2 emission increase continually. To solve those problem, the environmental education should conducted optimally by intimidated the low carbon education. The purposed of this study was to give an overview establishment of the environmental education curriculum and the load amount of the low carbon education at science education study program. This descriptive study uses the literature analysis method with comparative approach. The documents analysis was the syllabus of environmental courses in four science education study program in Indonesia. Quantitatively showed that the environmental education at science education study program was very minimal, it was only 1 to 2 subjects which consist of 2 to 5 credits, or it is around 1,37%-3,42% from the total term that must be learned. Qualitatively showed that most of the materials on the environmental education subject was very general and basic. The low carbon education materials related to current environmental conditions such as the greenhouse gas, CO2 emission, global warming, green energy, climate change, including green technology was thought very minimal. It can be concluded that environmental lectures in science education study program are currently very minimal teaching about the substance of low carbon education, so it must be reproduced and used as a core content of the environmental materials taught.

Modelling ecosystem adaptation and dangerous rates of global warming

2019 ◽  
Vol 3 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Rebecca Millington ◽  
Peter M. Cox ◽  
Jonathan R. Moore ◽  
Gabriel Yvon-Durocher
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Diffusion Rate ◽  
Individual Species ◽  
Genetic Evolution ◽  
Rates Of Change ◽  
Rapid Climate Change ◽  
Warming Climate ◽  
Intraspecies Competition ◽  
High Trait

Abstract We are in a period of relatively rapid climate change. This poses challenges for individual species and threatens the ecosystem services that humanity relies upon. Temperature is a key stressor. In a warming climate, individual organisms may be able to shift their thermal optima through phenotypic plasticity. However, such plasticity is unlikely to be sufficient over the coming centuries. Resilience to warming will also depend on how fast the distribution of traits that define a species can adapt through other methods, in particular through redistribution of the abundance of variants within the population and through genetic evolution. In this paper, we use a simple theoretical ‘trait diffusion’ model to explore how the resilience of a given species to climate change depends on the initial trait diversity (biodiversity), the trait diffusion rate (mutation rate), and the lifetime of the organism. We estimate theoretical dangerous rates of continuous global warming that would exceed the ability of a species to adapt through trait diffusion, and therefore lead to a collapse in the overall productivity of the species. As the rate of adaptation through intraspecies competition and genetic evolution decreases with species lifetime, we find critical rates of change that also depend fundamentally on lifetime. Dangerous rates of warming vary from 1°C per lifetime (at low trait diffusion rate) to 8°C per lifetime (at high trait diffusion rate). We conclude that rapid climate change is liable to favour short-lived organisms (e.g. microbes) rather than longer-lived organisms (e.g. trees).

Political Preferences, Personality Traits, and Environmentalism

2020 ◽  
Author(s):  
Alistair Soutter ◽  
René Mõttus
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Personality Traits ◽  
Public Discourse ◽  
Environmental Attitudes ◽  
Scientific Evidence ◽  
Political Orientation ◽  
Anthropogenic Climate Change ◽  
Political Preferences ◽  
Party Voting

Although the scientific evidence of anthropogenic climate change continues to grow, public discourse still reflects a high level of scepticism and political polarisation towards anthropogenic climate change. In this study (N = 499) we attempted to replicate and expand upon an earlier finding that environmental terminology (“climate change” versus “global warming”) could partly explain political polarisation in environmental scepticism (Schuldt, Konrath, & Schwarz, 2011). Participants completed a series of online questionnaires assessing personality traits, political preferences, belief in environmental phenomenon, and various pro-environmental attitudes and behaviours. Those with a Conservative political orientation and/or party voting believed less in both climate change and global warming compared to those with a Liberal orientation and/or party voting. Furthermore, there was an interaction between continuously measured political orientation, but not party voting, and question wording on beliefs in environmental phenomena. Personality traits did not confound these effects. Furthermore, continuously measured political orientation was associated with pro-environmental attitudes, after controlling for personality traits, age, gender, area lived in, income, and education. The personality domains of Openness, and Conscientiousness, were consistently associated with pro-environmental attitudes and behaviours, whereas Agreeableness was associated with pro-environmental attitudes but not with behaviours. This study highlights the importance of examining personality traits and political preferences together and suggests ways in which policy interventions can best be optimised to account for these individual differences.

Graubündens Wald im Fokus | Focus on the Grisons forest

2009 ◽  
Vol 160 (7) ◽  
pp. 195-200
Author(s):  
Reto Hefti
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Natural Hazards ◽  
Positive Attitude ◽  
Production Costs ◽  
Raw Material ◽  
Intensive Use ◽  
Form Part ◽  
New Challenges ◽  
The Government

In the mountainous canton Grisons, much visited by tourists, the forest has always had an important role to play. New challenges are now presenting themselves. The article goes more closely into two themes on the Grisons forestry agenda dominating in the next few years: the increased use of timber and climate change. With the increased demand for logs and the new sawmill in Domat/Ems new opportunities are offered to the canton for more intensive use of the raw material, wood. This depends on a reduction in production costs and a positive attitude of the population towards the greater use of wood. A series of measures from the Grisons Forestry Department should be of help here. The risk of damage to infrastructure is particularly high in a mountainous canton. The cantonal government of the Grisons has commissioned the Forestry Department to define the situation concerning the possible consequences of global warming on natural hazards and to propose measures which may be taken. The setting up of extensive measurement and information systems, the elaboration of intervention maps, the estimation of the danger potential in exposed areas outside the building zone and the maintenance of existing protective constructions through the creation of a protective constructions register, all form part of the government programme for 2009 to 2012. In the Grisons, forest owners and visitors will have to become accustomed to the fact that their forests must again produce more wood and that, on account of global warming, protective forests will become even more important than they already are today.

Denouement: World Politics, Systemic Leadership, and Climate Change

2018 ◽  
Author(s):  
William R. Thompson ◽  
Leila Zakhirova
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
World Politics ◽  
First Century ◽  
Modern World ◽  
Climate Fluctuations ◽  
The Past ◽  
Agrarian Economy ◽  
Historical Processes

In this final chapter, we conclude by recapitulating our argument and evidence. One goal of this work has been to improve our understanding of the patterns underlying the evolution of world politics over the past one thousand years. How did we get to where we are now? Where and when did the “modern” world begin? How did we shift from a primarily agrarian economy to a primarily industrial one? How did these changes shape world politics? A related goal was to examine more closely the factors that led to the most serious attempts by states to break free of agrarian constraints. We developed an interactive model of the factors that we thought were most likely to be significant. Finally, a third goal was to examine the linkages between the systemic leadership that emerged from these historical processes and the global warming crisis of the twenty-first century. Climate change means that the traditional energy platforms for system leadership—coal, petroleum, and natural gas—have become counterproductive. The ultimate irony is that we thought that the harnessing of carbon fuels made us invulnerable to climate fluctuations, while the exact opposite turns out to be true. The more carbon fuels are consumed, the greater the damage done to the atmosphere. In many respects, the competition for systemic leadership generated this problem. Yet it is unclear whether systemic leadership will be up to the task of resolving it.

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