https://techcrunch.com/2019/11/28/bunq-launches-metal-card-and-plants-a-tree-for-every-e100-spent/

Fintech startup Bunq is launching a metal card called the Green Card. While some banks offer a cashback program with premium cards, Bunq is offering a special kind of “cashback”. For every €100 spent, Bunq plants a tree. The company has partnered with Eden Reforestation Projects to finance reforestation around the globe.

Manufacturing a metal card isn’t particularly environmentally friendly. That’s why the Green Card expires after six years instead of four years. It is also made of recyclable material (even though I’m not sure it’s that easy to recycle a metal card with a chip, a magnetic stripe and an NFC antenna after it expires).