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Bitcoin miners win legal battle to keep mum about energy use [US]
(www.theverge.com)
This is a most excellent place for technology news and articles.
Good point, every form of money we can use has some inherent impact to the environment. Debit / Credit card infrastructure is consuming electricity 24/7/365 all over the world. Cash uses a variety of manufacturing systems that mostly run on electricity, and requires raw materials to be sourced and prepared for use as money.
Not to mention the usd is based on oil trades ..