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RESEARCH ARTICLE
The effects of research and development and financial development
on CO
2
emissions: evidence from selected WAME economies
Shauku Kihombo
1
&Shah Saud
1,2
&Zahoor Ahmed
1
&Songsheng Chen
1
Received: 5 December 2020 /Accepted: 3 May 2021
#The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021
Abstract
Earth is in the Anthropocene era and humankind deteriorates the global environment; thus, there is a dire need for sustainable
policies at all levels. This study investigates the causal and long-run association between financial development, research and
development expenditures, and carbon dioxide emission including energy intensity and income level for selected West Asia and
Middle East (WAME) economies along the belt and road. The long-run panel estimation findings reveal that the research and
development expenditures (R&D) are negatively associated with environmental degradation, as they significantly mitigate
carbon emissions. In contrast, financial development contributes to environmental degradation. The findings validated the
environmental Kuznets curve (EKC) phenomenon for the WAME economies considering R&D and financial development.
Further, energy intensity exacerbates environmental quality. Additionally, the findings from Dumitrescu-Hurlin (DH) causal
approach reveal bidirectional causal associations between financial development and carbon emissions and between R&D and
emissions. The findings have implications for policy and practice to attain environmental sustainability in the selected WAME
countries.
Keywords Financial development .Research & Development .Energy intensity .DSUR .Belt & Road
Introduction
Over the past few decades, climate change associated with an
enormous increase in greenhouse gas (GHG) emissions has
become the focus of environmental studies (Ahmed et al.
2019a,2021a). CO
2
emissions are among the foremost causes
of global warming and climate change due totheir major share
in greenhouse gases. According to IEA, CO
2
emissions from
energy consumption constitute over 58% of global emissions.
Economic development experienced by the economies around
the world has sparked energy demand and energy supply has
increased by approximately 150% from 1971 to 2015 (IEA
2017). Indeed, energy consumption is vital for every
economy’s economic development; however, overwhelming
dependence on fossil energy sources leads to more emissions
and environmental degradation.
Concerning the intergeneration equity theory, it is a moral
obligation of economies to preserve and sustain the environ-
ment for future generations (Hunt and Fund 2016). The pres-
ervation of the planet from global environmental crises
grabbed world attention, and finally, the key objectives of
international efforts are taken by world economies in the form
of UNFCC
1
(Marrakesh Accords (COP7)
2
, Kyoto Protocol
(COP3)
3
, Paris agreement (COP21), Bali Road Map
1
See for more detail: UN Framework Convention on Climate Change https://
unfccc.int/process/the-convention/what-is-the-united-nations-framework-
convention-on-climate-change
2
See for more detail: Marrakesh Accords (COP7) https://unfccc.int/lulucf-
developments-past-cop-and-sb-sessions-0
3
See for more detail: Kyoto Protocol (COP3) https://unfccc.int/essential_
background/kyoto_protocol/items/6034.php
Responsible Editor: Ilhan Ozturk
*Shah Saud
saud_chawoo@bit.edu.cn; saud_mrd@yahoo.com
*Songsheng Chen
chenss@bit.edu.cn
Shauku Kihombo
skihombo@gmail.com
Zahoor Ahmed
zahoorahmed83@yahoo.com
1
School of Management and Economics, Beijing Institute of
Technology, South-Zhongguancun Street, Beijing 100081, People’s
Republic of China
2
Institute of Business Studies, Kohat University of Science &
Technology, Kohat, Kyber Pakhtunkhwa 26000, Pakistan
https://doi.org/10.1007/s11356-021-14288-5
/ Published online: 11 May 2021
Environmental Science and Pollution Research (2021) 28:51149–51159
Content courtesy of Springer Nature, terms of use apply. Rights reserved.