Transportation CO$_2$ emissions stayed high despite recurrent COVID outbreaks
Yilong Wang, Zhu Deng, Philippe Ciais, Zhu Liu, Steven J. Davis,, Pierre Gentine, Thomas Lauvaux, Quansheng Ge
TL;DR
Despite multiple COVID-19 waves causing initial drops and subsequent rebounds, transportation CO₂ emissions remained high, with recent reductions being less significant, as analyzed through near-real-time emission estimates and policy impacts.
Contribution
This study provides a detailed analysis of transportation CO₂ emission trends during COVID-19 using near-real-time data and examines the effects of human behavior and policies.
Findings
Emissions dropped sharply during early COVID-19 waves
Rebounds in emissions occurred after initial declines
Recent reductions in emissions are less substantial
Abstract
After steep drops and then rebounds in transportation-related CO emissions over the first half of 2020, a second wave of COVID-19 this fall has caused further -- but less substantial -- emissions reductions. Here, we use near-real-time estimates of daily emissions to explore differences in human behavior and restriction policies over the course of 2020.
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Taxonomy
TopicsCOVID-19 impact on air quality · Air Quality and Health Impacts · COVID-19 epidemiological studies