Temporary reduction in daily global CO2 emissions during the COVID-19 forced confinement
Corinne Le Quéré, Robert B. Jackson, Matthew W. Jones, Adam J. P. Smith, Sam Abernethy, Robbie M. Andrew, Anthony J. De-Gol, David R. Willis, Yuli Shan, Josep G. Canadell, Pierre Friedlingstein, Felix Creutzig and Glen P. Peters
Read our article in Nature Climate Change (2020)
With further discussion of the implications for the future trajectory of CO2 emissions in The Conversation:
Global Impacts of ‘Lockdown’
Global daily emissions fell sharply in 2020 as social confinement measures were introduced to slow the spread of coronavirus (COVID-19).
Reductions in emissions during January and February were predominantly driven by confinement in China.
International expansion of confinement measures led to deeper reductions in March and April.
Measures have persisted in many regions into 2021, with continued impacts on emissions.
Impacts on Emission Sectors
Reductions in emissions from surface transport, industry and power contributed most to the total reduction in daily emissions at the global scale.
Increases in residential emissions only slightly offset the reductions seen in other sectors.
Confinement had different impacts on total and sector-by-sector emissions reductions in different countries
Variability was also seen across Chinese provinces and US states
See “Impacts by Country”, “Impacts by Chinese Province” and “Impacts by US State”, below.
Impacts on the Top 4 Emission Regions
In the USA and Europe, the reduction in emissions from surface transport was the largest component of the overall drop in emissions.
In China and India, the reductions in emissions from the industry and power sectors outweighed the reduction in emissions from surface transport.
Impacts by Country (%)
Plots of change (%) in emissions for all countries.
Impacts by Country
Plots of absolute change (Mt CO2 day-1) in emissions for all countries.
Impacts by Chinese Province
Plots of change (%) in emissions for each province of China.
Impacts by US State
Plots of change (%) in emissions for each State of the US.