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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 45 | Copyright
Adv. Geosci., 45, 155-162, 2018
https://doi.org/10.5194/adgeo-45-155-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  21 Aug 2018

21 Aug 2018

Potential climate change mitigation of Indian Construction Industry through a shift in energy efficient technology by 2050

Priyanka Jajal1 and Trupti Mishra1,2 Priyanka Jajal and Trupti Mishra
  • 1Interdisciplinary Programme in Climate Studies, Indian Institute of Technology Bombay, Mumbai-400076, India
  • 2Shailesh J. Mehta School of Management, Indian Institute of Technology Bombay, Mumbai-400076, India

Abstract. Climate change is a growing concern that is attracting international efforts. India, as a developing country, has committed to reducing its emission intensity of GDP up to 30%–35% by 2030. The emission intense sectors would be targeted to achieve climate commitment. One of the emission intense sector is construction raw material manufacturing that contributes 10% share in the total emissions making it one of the potential mitigation sector. The study examines emissions from the construction raw materials namely, cement, steel, and brick manufacturing and presents two emission scenarios up to 2050. Energy efficient scenario (S2) is compared with a reference scenario (S1) developed based on a bottom-up approach. The results indicate that a moderate energy efficiency improvements and technological shifts lead to a decrease in emissions of 72MTCO2 by 2030 and 137MTCO2 by 2050. Further, the steel industry has the highest reduction potential, as the current technologies are energy inefficient. Similarly, the current dependency on fired bricks may be shifted to cement setting blocks leading to emission reductions. Cement manufacturing, on the other hand, shows limited scope for emission reduction that may be achieved through energy efficiency improvements. Efforts towards energy efficiency improvements in construction raw material manufacturing would result in reductions beyond the existing commitment of the Paris Agreement for India by 2030.

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Under the present study, cement, steel, and brick manufacturing have been studied to determine their emission contribution in India. As the emissions are found to be significant, various future plausibility of the energy and emissions from the sector are assessed. It is found that energy efficiency improvements from steel and brick manufacturing processes result in emission reductions. Combined efforts on the industry could reduce emissions beyond the Paris Agreement commitment of India.
Under the present study, cement, steel, and brick manufacturing have been studied to determine...
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