scholarly journals Likelihood of climate change pathways under uncertainty on fossil fuel resource availability

2016 ◽  
Vol 9 (8) ◽  
pp. 2482-2496 ◽  
Author(s):  
Iñigo Capellán-Pérez ◽  
Iñaki Arto ◽  
Josué M. Polanco-Martínez ◽  
Mikel González-Eguino ◽  
Marc B. Neumann

The consideration of the entire range of revised estimates of fossil fuels resources shows that their depletion is likely to occur during the 21st century accelerating the transition to renewable energy sources but not alleviating the need for urgent climate action.

Atmosphere ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 476
Author(s):  
Kevin J. Warner ◽  
Glenn A. Jones

China and India are not only the two most populous nations on Earth, they are also two of the most rapidly growing economies. Historically, economic and social development have been subsidized by cheap and abundant fossil-fuels. Climate change from fossil-fuel emissions has resulted in the need to reduce fossil-fuel emissions in order to avoid catastrophic warming. If climate goals are achieved, China and India will have been the first major economies to develop via renewable energy sources. In this article, we examine the factors of projected population growth, available fossil-fuel reserves, and renewable energy installations required to develop scenarios in which both China and India may increase per capita energy consumption while remaining on trach to meet ambitious climate goals. Here, we show that China and India will have to expand their renewable energy infrastructure at unprecedented rates in order to support both population growth and development goals. In the larger scope of the literature, we recommend community-based approaches to microgrid and cookstove development in both China and India.


2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Isak Karabegović

It is well-known that, in the past decades, the burning of fossil fuels was identified as the major cause of climate change. Climate change mitigation is becoming a central concern of global society. Limiting global warming to below 2 °C above the temperature of the pre-industrial period is the key to preserving global ecosystems and providing a secure basis for human activities, as well as reducing excessive environmental change. The ambitions increased at an accelerated pace with a dramatic expansion of net zero-emission targets. Increasing pressure from citizens and society has forced countries to intensify their climate plans, while the private sector has bought a record amount of renewable energy. An energy system based on fossil fuels must be replaced by renewable energy with low carbon emissions with improved energy efficiency. That applies to all consumers of fossil energy: cities, villages, building sectors, industry, transport, agriculture, and forestry. The paper explores and presents the strategy of energy development of renewable energy sources in the world. The application of new technologies that have led to developing renewable energy sources is presented in detail: wind energy, solar energy, small hydropower plants, biomass, and their increase in the total share of energy production, i.e., reduced fossil fuel use in energy production. Investments in new technologies used in renewable energy sources have led to increases in employment worldwide. Analysis of the trend of increased energy production from RES (Renewable Energy Sources) with investment plans, the employment rate for each energy source, and the development of renewable energy sources in the coming period are provided.


2021 ◽  
Vol 101 ◽  
pp. 01010
Author(s):  
E.S. Romanova ◽  
A.A. Masalkova

This research work is devoted to the issue of studying the key risks of switching to renewable energy sources. The relevance of the topic of work is determined by the fact that, according to climatologists [5], climate change, which has a negative impact on the environment, is caused by the emission of greenhouse gases such as carbon dioxide (CO2). For this reason, measures to prevent or reduce greenhouse gas emissions are at the heart of the energy transition. International treaties such as the Kyoto Protocol and the Paris Agreement lay the foundations for global action to combat climate change and implement a fourth energy transition. The energy transition is characterized by a number of incentives and barriers. Despite the fact that there are many scenarios for the development of the global energy sector by 2050, the expected transformations of the energy market lead to a significant redistribution of the ratio of the shares of hydrocarbon sources and renewable energy sources [16]. The trend towards fossil fuels is on the rise. These transformations in the market are determined not only by the climate agenda, but also by the concept of sustainable economic development.


Tehnika ◽  
2021 ◽  
Vol 76 (3) ◽  
pp. 379-385
Author(s):  
Bojan Stojčetović ◽  
Milan Mišić ◽  
Aleksandar Đorđević

The development of today's economies is inconceivable without energy. However, fossil fuel reserves are declining, climate change is accelerating and some changes in the energy sector are needed. Renewable energy sources are a potential solution for many scientists and practitioners. However, the planning and implementation of renewable energy projects requires consideration of a number of criteria, which is why multicriteria decision-making methods are often used to evaluate renewable energy sources/technologies. Goal of this paper is to evaluate four types of renewable energy sources (photovoltaic, hydro, biomass and wind energy) in Serbia. Analytical hierarchical process and seven criteria were applied. Based on the obtained results, hydro sources are ranked the best. Also, a sensitivity analysis was conducted to determine whether changes in the priority of criteria would cause changes in the range of alternatives. It was found that major changes in priorities are needed for changes to occur, so it can be concluded that the results obtained are relevant.


2019 ◽  
Vol 25 (3) ◽  
pp. 117-125
Author(s):  
Rena Lovo ◽  
Eric Gilder ◽  
Ora Renagi ◽  
Dapsy Olatona

Abstract In this study, the authors carried out a detailed analysis of the technologies required for successful implementation of a sustainable renewable energy household power supply in Papua New Guinea or PNG (PNG is a Pacific Island nation, North of Australia) to free the country from fossil fuel dependency. The role of renewable energy sources in the recent PNG National Energy Policy covering 2018 to 2050 (unveiled at the 2018 March Energy Summit in Port Moresby by the PNG Minister of Energy) was also analysed. From the outcome of our recently concluded SERI 2018 Renewable Energy conference, we assembled into a single hypothetical ‘energy basket’ all the varied renewable ‘green’ energy sources within PNG (as estimated by our energy research groups). This paper estimates that there is sufficient renewable energy in PNG and advocates that these available green energy sources should be tapped, for they can go a long way in the quest for climate change mitigation. This research paper will articulate that shifting PNG’s and other Pacific Island nations’ energy reliance from fossil fuels and other non-renewable sources to renewable green and environmentally sustainable sources is not only achievable, but feasible within a reasonable time.


Author(s):  
Chelsea Schelly

The electricity grid in the United States may be the largest, most pervasive technological system ever constructed to meet the needs and comforts of human beings (Nye 1997). Although it is less than 150 years old, the electricity infrastructure of this nation is ubiquitous; power lines stretch across deserts, forests, states, highways, and the entire nation in order to provide electricity to residences, businesses, and communities. The electricity carried by these transmission lines is generally produced using fossil fuels (mostly coal; see US Energy Information Administration 2012) and is most commonly generated at a monstrously large facility (a coal plant, a nuclear facility, or a hydropower dam). Our electricity infrastructure was constructed to carry enormous amounts of electricity across vast geographical expanses, based on the massive generation facilities and concentrated fossil fuel based energy sources that defined the system and its use. However, there are increasing concerns regarding the sources of our energy supply. Many of these concerns are related to climate change and how carbon dioxide emissions from burning fossil fuels contribute to rising global temperatures and the climate instability of the planet (Brown 2003). Additional concerns include the host of other environmental damages caused by the use of coal (Epstein et al. 2011), nuclear energy (Slovic et al. 1991), and hydro-electricity (Dincer 1998); other debates involve worries about nearing or reaching peak energy supplies (Brown 2003), energy security (Yergin 2006), and the aging transmission grid (Amin 2003). For a multitude of reasons, many would agree that it’s time to rethink our dependence on fossil fuel based forms of energy and move toward alternative, renewable energy sources (Brown 2003, pp. 116–135). The good news is, the renewable energy industry gets bigger every year, with more energy from renewable sources being produced, sold, and used (Sherwood 2011). Some US states have enacted renewable energy standards requiring that a certain percentage of their electricity supply come from renewable sources. Tax incentives, subsidies, and various forms of rebates, in financially incentivizing renewable energy adoption, also provide evidence that we are indeed moving in the direction of clean, renewable sources of energy.


2021 ◽  
Author(s):  
Hemlal Bhattarai

Renewable energy sources are gaining momentum in power sector mainly to address the impacts of climate change as well as the risks associated with usage of fossil fuels or nuclear energy sources. Hydropower is one of the most promising renewable energy source-based power plant that hold significant shares globally. But there are series of risks associated with hydropower project when we talk about sustainability and needs are felt to critically understand the pertaining risks as well as protocols or measures to quantify the risks. Such measure will prove to be crucial in underlining the strategic measures from planning, construction and operation phases of hydropower keeping on account of its sustainability.


Author(s):  
Vasile Popa ◽  
Octavian Cocoș

Human society faces the great challenge of drastically reducing greenhouse gas emissions while providing increased amounts of energy. Although the share of renewable energy sources has increased in recent years, fossil fuels are still widely used and burning them makes large amounts of carbon dioxide enter the atmosphere. However, renewable energy sources may not be able to supply in time enough energy to replace fossil fuels. Under the circumstances, the question arises as to whether nuclear energy could play a significant role in mitigating climate change. Although there is still confidence and support for nuclear energy, it is unlikely that this energy source will make a greater contribution to combating climate change in the coming decades. This study analyzes the current state of nuclear energy, as well as the development prospects in the context of climate change and risks to the environment and human health.


2020 ◽  
Vol 10 (2) ◽  
pp. 21 ◽  
Author(s):  
Roberto Leonardo Rana ◽  
Mariarosaria Lombardi ◽  
Pasquale Giungato ◽  
Caterina Tricase

The scarcity of fossil fuels and their environmental impact as greenhouse gas (GHG) emissions, have prompted governments around the world to both develop research and foster the use of renewable energy sources (RES), such as biomass, wind, and solar. Therefore, although these efforts represent potential solutions for fossil fuel shortages and GHG emission reduction, some doubts have emerged recently regarding their energy efficiency. Indeed, it is very useful to assess their energy gain, which means quantifying and comparing the amount of energy consumed to produce alternative fuels. In this context, the aim of this paper is to analyze the trend of the academic literature of studies concerning the indices of the energy return ratio (ERR), such as energy return on energy invested (EROEI), considering biomass, wind and solar energy. This could be useful for institutions and to public organizations in order to redefine their political vision for realizing sustainable socio-economic systems in line with the transition from fossil fuels to renewable energies. Results showed that biomass seems to be more expensive and less efficient than the equivalent fossil-based energy, whereas solar photovoltaic (PV) and wind energy have reached mature and advanced levels of technology.


Author(s):  
Merve Duruyurek ◽  
Cihan Dusgun ◽  
Mehmet Fuat Gulhan ◽  
Zeliha Selamoğlu

Using primary energy sources in World as fossil fuels, causes air pollution and climate change. Because of these reasons, people looking for renewable energy suppliers which has less carbondioxide and less pollution. Carbon in biofuels is producing from photosynthesis. For this, burning biofuels don’t increase carbondioxide in atmosphere. Scientists predict that plants with high carbonhydrate and protein contents are 21. centuries biofuels. Potatoes are producing over 280 million in whole world and Turkey is 6th potato producer. Turkey produces 5250000 tonne of potatoes. Approximately 20% of potatoes are waste in Niğde. Our study aimed to produce bioethanol from Solanum tuberosum by using the yeast Saccharomyces cerevisiae. As a result renewable energy sources can be produced from natural wastes.


Sign in / Sign up

Export Citation Format

Share Document