Emissions and climate effects due to the COVID-19 response

Monthly emissions and concentrations for the effects of the Covid-19 pandemic and resulting society response. All scenarios should be compared to the input4MIPS SSP245 baseline https://esgf-node.llnl.gov/search/input4mips/

We provide sector and national emission files as well as the code to create them from mobility data in national_level_lockdown_analysis.zip. Sector csv files have aviation and shipping by nation. National csv files have international aviation and shipping as a separate nation. See https://github.com/Priestley-Centre/COVID19_emissions for more details. The calculations relating these to the emissions netcdf files can be found at https://github.com/rlamboll/2dCOVID19Emissions/ and is detailed in https://gmd.copernicus.org/preprints/gmd-2020-373/.

Description of files

Monthly emissions of aerosols and precursors are saved directly here, zipped folders contain GHG concentrations and NOx emissions from aviation for the effects of the Covid-19 pandemic and resulting society response. All scenarios should be compared to the input4MIPS SSP245 baseline https://esgf-node.llnl.gov/search/input4mips/

Five scenarios are given for departures from the SSP2-4.5 baseline. The baseline is also provided for convenience, with timesteps available corresponding to both the 4-year blip and the 2-year blip. Scenarios depart from baseline after the start of 2020. Monthly concentrations of CO2, CH4 and N2O are provided over 2015-2050. For short-lived species emissions are provided for BC, CO, OC, SO2, NH3, NOx, & NMVOCs. Monthly values for years:2015,2019,2020,2021,2023,2030,2040 and 2050 are provided for the four scenarios and baseline (2-year blip, strong and moderate green recovery and fossil fuel recovery). For the 4-year blip nad 4baseline, the years are 2015,2019,2020,2021,2022, 2023, 2025, 2030,2040 and 2050. The SSP245 baseline is also available from the input4MIPS website.

NOx emissions from aviation is provided in a zipped folder, with monthly values for years:2015,2019,2020, 2021, 2022, 2023,2030,2040 and 2050. Two files have these years only, (corresponding to 2-year blip and baseline) and two have data for 2024 too (corresponding to the 4-year blip, or baseline for it).

Well-mixed greenhouse gas emissions are provided for North, South and global average concentration of CO2, CH4 and N2O for all months 2015-2050

For more info

Funding was provided by the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement nos. 820829 (CONSTRAIN) http://constrain-eu.org/

Contact Piers Forster (p.m.forster@leeds.ac.uk) for more details. www.climate.leeds.ac.uk

Paper reference is

Forster, P.M., Forster, H.I., Evans, M.J. et al. Current and future global climate impacts resulting from COVID-19. Nat. Clim. Chang. (2020). https://doi.org/10.1038/s41558-020-0883-0

Before Covid-19, FareShare UK regularly distributed surplus food to third sector organisations across Leeds from their warehouses in Barnsley and Beeston. Once lockdown measures began in the w/c 16 March, Leeds City Council opened a larger warehouse in Leeds to provide space to store more food and arrange emergency food delivery and distribution withing social distance guidelines The Leeds Warehouse was established as a response to Covid-19 and receives food from Fareshare in Barnsley and Beeston and is an indication of the amount of food being delivered in the Council's joint and partnership response to Emergency Food Provision during the pandemic. The total amount of food to Leeds is all the Food being delivered to Leeds by FareShare. This figure includes food to the Leeds Warehouse and food to third sector organisations such as food banks, soup kitchens, and charities. From 15/07/20 the data was changed to being recorded on a fortnightly instead of weekly basis. NB The large Leeds Warehouse was wound down from 1st Sept, after which point a smaller warehouse was set up to make up food parcels as part of the post lockdown emergency support service. From this date the report shows food being delivered to third sector organisations and is reported on an adhoc basis.