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K-cups are not recyclable. In the past two years, several billion of them have been sent to landfills.(r/environment)
People do realize they can use their own coffee grounds for the keurig, right?
www.amazon.com/Keurig-5048-Reusable-Coffee-Filter/…
Edit: I’m not trying to discredit you or the article, but there is a perfectly fine green solution already available and not mentioned by either you or the article.