Energy system change and external effects in climate change mitigation

2007 ◽  
Vol 12 (3) ◽  
pp. 359-378 ◽  
Author(s):  
DENNIS ANDERSON ◽  
SARAH WINNE

Through a dynamic model of energy system change the paper examines the role of innovation in bringing about a low carbon energy system. The processes of innovation and technological substitution are cumulative, dynamic, and highly non-linear processes such that how the energy system evolves in the long term is extraordinarily sensitive to the strength and duration of the initial policies. It is possible, under some policy assumptions, that energy systems would continue to depend on fossil fuels for so long as fossil fuels remain abundant and the least cost resource; and under other assumptions, after allowing for the unavoidable lags associated with investment and the building up of a new capital stock, that fossil fuels would become almost wholly displaced by the non-carbon alternatives. The implication is that the external benefits of innovation, which include the creation of options and the reduction of costs arising directly from innovation itself, and the reduction of environmental damage, are far greater, perhaps by orders of magnitude, than the traditional cost–benefit models used for the analysis of climate change mitigation. The analysis suggests why a focus on discovery and innovation offers a promising way forward for national and international policies on climate change.

Climate ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 136
Author(s):  
Rebecca J. Barthelmie ◽  
Sara C. Pryor

Global wind resources greatly exceed current electricity demand and the levelized cost of energy from wind turbines has shown precipitous declines. Accordingly, the installed capacity of wind turbines grew at an annualized rate of about 14% during the last two decades and wind turbines now provide ~6–7% of the global electricity supply. This renewable electricity generation source is thus already playing a role in reducing greenhouse gas emissions from the energy sector. Here we document trends within the industry, examine projections of future installed capacity increases and compute the associated climate change mitigation potential at the global and regional levels. Key countries (the USA, UK and China) and regions (e.g., EU27) have developed ambitious plans to expand wind energy penetration as core aspects of their net-zero emissions strategies. The projected climate change mitigation from wind energy by 2100 ranges from 0.3–0.8 °C depending on the precise socio-economic pathway and wind energy expansion scenario followed. The rapid expansion of annual increments to wind energy installed capacity by approximately two times current rates can greatly delay the passing of the 2 °C warming threshold relative to pre-industrial levels. To achieve the required expansion of this cost-effective, low-carbon energy source, there is a need for electrification of the energy system and for expansion of manufacturing and installation capacity.


2021 ◽  
Vol 23 (3) ◽  
pp. 73-79
Author(s):  
Jasmina Mandić Lukić ◽  
◽  
Đorđina Milovanović ◽  
Maja Stipić ◽  
Sanja Petrović Bećirović ◽  
...  

Faced with forthcoming international obligations related to climate change mitigation measures, primarily planned to be reflected through the Law and Action Plan on Low Carbon Development Strategy, as well as the Law on Climate Change, all of which are currently being defined and adopted, Serbia is increasingly facing a need to switch its coal-fired facilities to alternative, environmentally more acceptable options. The related measures will have to be implemented much sooner than initially planned. Knowing that 80% of national GHG emissions originate from the energy sector, as well as that the dominant portion of those emissions results from the use of locally available coal, it is clear that the most efficient climate change mitigation measure would be a switch to alternative fuel options. However, having in mind that such an energy transition process is coupled with significant technological, environmental, economic, social, and other difficulties, the EU has initiated several projects, and one of them is TRACER, launched under the Horizon 2020 program, that strives to shed light on the best research and innovation strategies facilitating easier transition to the sustainable, low carbon energy system. The project addresses actions across nine coal-intensive European regions, including Kolubara Region in Serbia. The paper presents technological, environmental, and social challenges in the transition process, with an emphasis on the Kolubara region, and a proposal for the energy transition in Serbia respecting R&I strategies and Smart Specialization.


Futures ◽  
2017 ◽  
Vol 93 ◽  
pp. 14-26 ◽  
Author(s):  
Alejandra Elizondo ◽  
Vanessa Pérez-Cirera ◽  
Alexandre Strapasson ◽  
José Carlos Fernández ◽  
Diego Cruz-Cano

2020 ◽  
Vol 5 (1) ◽  
pp. 47-58
Author(s):  
Didem Gunes Yilmaz ◽  

Paris Agreement of December 2015 was the last official initiative led by the United Nations (UN) as the driver of climate change mitigation. Climate change was hence linked with an increase in the occurrence of natural hazards. A variety of initiatives were consequently adopted under different themes such as sustainable cities, climate-friendly development and low-carbon cities. However, most of the initiatives targeted by global cities with urban areas being the focus in terms of taking action against global warming issues. This is due to the structural and environmental features of cities characterized by being populated, as such, they not only generate a large number of carbon emissions but also happens to be the biggest consumer of natural resources. In turn, they create a microclimate, which contributes to climate change. Masdar City, for example, was designed as the first fully sustainable urban area, which replaced fuel-based energy with the electric-based energy. China, as another example, introduced the Sponge Cities action, a method of urban water management to mitigate against flooding. Consequently, architects and urban planners are urged to conform to the proposals that would mitigate global warming. This paper, as a result, examines some of the models that have been internationally adopted and thereafter provide the recommendations that can be implemented in large urban areas in Turkey, primarily in Istanbul.


Author(s):  
Basanta K. Pradhan ◽  
Joydeep Ghosh

This paper compares the effects of a global carbon tax and a global emissions trading regime on India using a dynamic CGE framework. The sensitivity of the results to the value of a crucial elasticity parameter is also analysed. The results suggest that the choice of the mitigation policy is relatively unimportant from an efficiency perspective. However, the choice of the mitigation policy and the value of the substitution elasticity between value added and energy were found to be important determinants of welfare effects. Global climate change mitigation policies have the potential for promoting low carbon and inclusive growth in India.


2018 ◽  
Vol 10 (8) ◽  
pp. 2715 ◽  
Author(s):  
Alejandro Padilla-Rivera ◽  
Ben Amor ◽  
Pierre Blanchet

The design and study of low carbon buildings is a major concern in a modern economy due to high carbon emissions produced by buildings and its effects on climate change. Studies have investigated (CFP) Carbon Footprint of buildings, but there remains a need for a strong analysis that measure and quantify the overall degree of GHG emissions reductions and its relationship with the effect on climate change mitigation. This study evaluates the potential of reducing greenhouse gas (GHG) emissions from the building sector by evaluating the (CFP) of four hotpots approaches defined in line with commonly carbon reduction strategies, also known as mitigation strategies. CFP framework is applied to compare the (CC) climate change impact of mitigation strategies. A multi-story timber residential construction in Quebec City (Canada) was chosen as a baseline scenario. This building has been designed with the idea of being a reference of sustainable development application in the building sector. In this scenario, the production of materials and construction (assembly, waste management and transportation) were evaluated. A CFP that covers eight actions divided in four low carbon strategies, including: low carbon materials, material minimization, reuse and recycle materials and adoption of local sources and use of biofuels were evaluated. The results of this study shows that the used of prefabricated technique in buildings is an alternative to reduce the CFP of buildings in the context of Quebec. The CC decreases per m2 floor area in baseline scenario is up to 25% than current buildings. If the benefits of low carbon strategies are included, the timber structures can generate 38% lower CC than the original baseline scenario. The investigation recommends that CO2eq emissions reduction in the design and implementation of residential constructions as climate change mitigation is perfectly feasible by following different working strategies. It is concluded that if the four strategies were implemented in current buildings they would have environmental benefits by reducing its CFP. The reuse wood wastes into production of particleboard has the greatest environmental benefit due to temporary carbon storage.


2021 ◽  
Vol 13 (21) ◽  
pp. 12235
Author(s):  
Peter Hemmings ◽  
Michael Mulheron ◽  
Richard J. Murphy ◽  
Matt Prescott

COVID-19 has had wide-ranging impacts on organisations with the potential to disrupt efforts to decarbonise their operations. To understand how COVID-19 has affected the climate change mitigation strategies of Airport Operators (AOs), questionnaires and semi-structured interviews with Sustainability Managers were undertaken in late 2020 amidst a period of disruption. While all reported that COVID-19 impacted delivery of interventions and projects to mitigate climate change, the majority stated that it would not impact their long-term climate goals, such as Net Zero by 2050. The most popular climate change mitigation interventions AOs intend to deploy between now and 2030 are on-site renewables and Electric Vehicles and related infrastructure. Engineered carbon removal interventions were considered highly unlikely to be deployed in this timeframe, with potential implications for Net Zero decarbonisation pathways. Despite the severe impacts of COVID-19 on the sector, results indicate that AOs remain committed to decarbonisation, with climate change action remaining the key priority for airports. Given ongoing financial and resource constraints, AOs will need to explore new business models and partnerships and nurture collaborative approaches with other aviation stakeholders to not only maintain progress toward Net Zero but “build back better”. Government support will also be needed to stimulate the development of a sustainable, resilient, low-carbon aviation system.


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