Photo: Simon HuckoJust in time for St. Patrick's Day, scientists at the University of Limerick have developed a biodegradable alternative to that plastic widget that keeps Guinness foamy. It turns out that coating the inside of the can with biodegradable, natural cellulose would do an even better job of putting nitrogen into the beer (which is what the plastic balls are for -- nitrogen is used to make stout bubbly). So on some future St. Patrick's Day, even your beer could be wearing green. Read more: "New Technology Creates a More Eco-Friendly Head on Your Guinness," GOOD
Get Grist in Your Inbox
Jess Zimmerman is the editor of Grist List.
ALEC calls for penalties on “free rider” solar-panel owners
We can’t stop watching these emus freak out about a ball
An eagle stole a video camera and made this cinematic masterpiece
Kidnapped Ethiopian girl rescued by caring, protective lions
You will not be able to stop looking at this penis snake