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DOI	10.1016/j.scitotenv.2021.151503
	What is the impact of COVID-19 pandemic on global carbon emissions?
	Ray, Ram L.; Singh, Vijay P.; Singh, Sudhir K.; Acharya, Bharat S.; He, Yiping
发表日期	2022
ISSN	0048-9697
EISSN	1879-1026
卷号	816
英文摘要	The coronavirus 2019 (COVID 19, or SARS-CoV-2) pandemic that started in December 2019 has caused an unprecedented impact in most countries globally and continues to threaten human lives worldwide. The COVID-19 and strict lockdown measures have had adverse effects on human health and national economies. These lockdown measures have played a critical role in improving air quality, water quality, and the ozone layer and reducing greenhouse gas emissions. Using Soil Moisture Active Passive (SMAP) Level 4 carbon (SMAP LC4) satellite products, this study investigated the impacts of COVID-19 lockdown measures on annual carbon emissions globally, focusing on 47 greatly affected countries and their 105 cities by December 2020. It is shown that while the lockdown measures significantly reduced carbon emissions globally, several countries and cities observed this reduction as temporary because strict lockdown measures were not imposed for extended periods in 2020. Overall, the total carbon emissions of select 184 countries reduced by 438 Mt in 2020 than in 2019. Since the global economic activities are slowly expected to return to the non-COVID-19 state, the reduction in carbon emissions during the pandemic will not be sustainable in the long run. For sustainability, concerned authorities have to put significant efforts to change transportation, climate, and environmental policies globally that fuel carbon emissions. Overall, the presented results provide directions to the stakeholders and policy makers to develop and implement measures to control carbon emissions for a sustainable environment. (c) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
英文关键词	COVID-19; Carbon emission; Greenhouse gas; Lockdown; Pandemic; SMAP
语种	英语
WOS研究方向	Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000766819100011
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281052
作者单位	Texas A&M University System; Prairie View A&M University; Texas A&M University System; Texas A&M University College Station; University of Allahabad
推荐引用方式 GB/T 7714	Ray, Ram L.,Singh, Vijay P.,Singh, Sudhir K.,et al. What is the impact of COVID-19 pandemic on global carbon emissions?[J],2022,816.
APA	Ray, Ram L.,Singh, Vijay P.,Singh, Sudhir K.,Acharya, Bharat S.,&He, Yiping.(2022).What is the impact of COVID-19 pandemic on global carbon emissions?.SCIENCE OF THE TOTAL ENVIRONMENT,816.
MLA	Ray, Ram L.,et al."What is the impact of COVID-19 pandemic on global carbon emissions?".SCIENCE OF THE TOTAL ENVIRONMENT 816(2022).