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Energy efficiency and underlying carbon emission trends.
Muhammad Javid1, Muhammad Khan2
1Pakistan Institute of Development Economics, Q.A.U Campus, P.O. Box 1091, Islamabad, Pakistan. javid@pide.org.pk.
Environmental Science and Pollution Research International
|December 16, 2019
Summary
Energy efficiency
Area of Science:
- Environmental Science
- Economics
- Technology
Background:
- Greenhouse gas emissions significantly impact environmental quality.
- Top emitters like China, USA, India, Germany, and Japan face scrutiny.
- Technological innovation is explored as a mitigation strategy.
Purpose of the Study:
- To quantify the impact of energy efficiency on environmental quality.
- To analyze CO2 emission trends in major emitting countries.
- To assess the role of technological innovations in reducing emissions.
Main Methods:
- Utilized annual data from 1971 to 2016.
- Employed the structural time series model (STSM) approach.
- Focused on China, USA, India, Germany, and Japan.
Main Results:
- CO2 emissions grew faster than energy consumption in China, India, USA, and Germany.
- Japan showed slower CO2 emission growth relative to energy consumption.
- Upward emission trends observed in China and India; downward in Germany.
- Mixed emission trends noted for the USA and Japan.
Conclusions:
- Persistent emission increases in China and India suggest limited environmental protection from energy efficiency.
- Technological progress in energy efficiency may be offset by other factors.
- Further investigation is needed to understand the discrepancies in emission trends.
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