Department of Economics and Finance, Birla Institute of Technology and Science (BITS), Pilani, India.
Environ Sci Pollut Res Int. 2023 Mar;30(13):38349-38362. doi: 10.1007/s11356-022-25049-3. Epub 2022 Dec 29.
The rising energy demand for information and communication technology (ICT) devices has piqued the interest of scholars and policymakers. Given that ICT devices are ubiquitous, any attempt to mitigate climate change should address the carbon footprint of the ICT sector. The present study examines the direct impact of ICT on the environment and the indirect impact through interaction with energy consumption, financial development, and globalization in SAARC economies from 2000 to 2020. Using econometric approaches robust to cross-sectional dependence, such as the Driscoll-Kraay estimator and the Dumitrescu-Hurlin causality test, the study found that ICT, renewable energy consumption, and globalization significantly reduce CO emission, whereas non-renewable energy consumption and financial development significantly increase emission. However, the interaction between financial development and ICT jointly reduces CO emissions. Similarly, renewable energy and globalization reduce emissions from increased ICT usage. The study also confirms the validity of the environmental Kuznets curve hypothesis for ICT diffusion. The causality test indicates bidirectional causality between ICT and CO emissions. Results suggest that SAARC economies can safely boost ICT and related applications to minimize emissions. They should also use renewable energy and green innovations in telecommunications to reduce their adverse environmental repercussions.
信息和通信技术(ICT)设备不断增长的能源需求引起了学者和政策制定者的关注。鉴于 ICT 设备无处不在,任何减轻气候变化的努力都应该解决 ICT 部门的碳足迹。本研究考察了 2000 年至 2020 年期间,SAARC 经济体中 ICT 对环境的直接影响以及通过与能源消耗、金融发展和全球化的相互作用产生的间接影响。该研究使用了对横截面相关性稳健的计量经济学方法,如 Driscoll-Kraay 估计量和 Dumitrescu-Hurlin 因果关系检验,结果表明,ICT、可再生能源消费和全球化显著降低了 CO2 排放,而不可再生能源消费和金融发展则显著增加了排放。然而,金融发展和 ICT 之间的相互作用共同减少了 CO2 排放。同样,可再生能源和全球化减少了因 ICT 使用增加而产生的排放。该研究还证实了 ICT 扩散的环境库兹涅茨曲线假说的有效性。因果关系检验表明 ICT 和 CO2 排放之间存在双向因果关系。结果表明,SAARC 经济体可以安全地推动 ICT 及相关应用的发展,以最大限度地减少排放。它们还应该在电信中使用可再生能源和绿色创新,以减少对环境的不利影响。