CMIP6 Data Usage

Code for the Fresh Eyes on CMIP project "CMIP6 Data Usage Report". The report was submitted under the name "CMIP6 data usage: Lessons learned from more than 200 million downloads" to the GMD CMIP7 Special Issue. DOI to come. Data Source CVs data is a copy from https://github.com/PCMDI/cmip6-cmor-tables/tree/main/Tables and https://github.com/WCRP-CMIP/CMIP6_CVs/blob/main/CMIP6_table_id.json. ESGF data was downloaded from https://esgf-ui.cmcc.it/esgf-dashboard-ui/cmip6.html C3S data was provided by Chris Goddard. AWS data was provided by Aparna Radhakrishnan. Initial CMIP6_Data_References.csv comes from https://www.wdc-climate.de/ords/f?p=127:2. It was then modified to include the number of citation found through DataCite. Country level population data is from the World Bank - https://data.worldbank.org/indicator/SP.POP.TOTL