https://wwwext.amgen.com/-/media/Themes/CorporateAffairs/amgen-com/amgen-com/downloads/responsibility-report/amgen-env-data-assurance-statement-https://wwwext.amgen.com/responsibility/environmental-sustainability/performance https://wwwext.amgen.com/responsibility/reporting-and-metrics/cdp Carbon Our carbon emissions from onsite combustion of fuel and purchased energy in 2020 decreased from 2019 by 21,000 metric tons (MT).