Did you know a Wisconsin woman created the plastics numbering system for recycling? Learn the interesting way Milly Zantow helped the world rethink plastics 30 years ago, and why it's still used today.
Did you know a Wisconsin woman created the plastics numbering system for recycling? Learn the interesting way Milly Zantow helped the world rethink plastics 30 years ago, and why it's still used today.