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Lexar unveils the world's first SD cards made of 316 stainless steel
(www.techspot.com)
This is a most excellent place for technology news and articles.
Energy needs can be met and shouldn't be an argument for using plastic.
The pollution could be more dependending on how you look at that statement, but making something without plastic results in less plastic pollution and you can't claim that to be an overall loss for the earth.