I don't know but I'm pretty sure my first Google result for that conflates source and sink: https://www.standardcarbon.com/2008/06/do-you-really-need-to-print-t

I don't know but I'm pretty sure my first Google result for that conflates source and sink: https://www.standardcarbon.com/2008/06/do-you-really-need-to-print-that-the-carbon-footprint-of-copy-paper/ https://www.standardcarbon.com/2008/06/do-you-really-need-to...