Key Cards For DNC Hotels Made From Wood | thedenverchannel.com

Wooden key cards will be given to guests at 35 Denver-area hotels during the DNC as part of the convention's green push. Boulder-based Sustainable Cards has spent years developing a way to create the cards and is donating them to the delegate hotels in hopes of getting bigger contracts with those chains later on. Sustainable Cards CEO Greg Hartmann said 240-million plastic key cards are discarded every year, which he said is the same as...