I've got it.
Why don't we enzymatically digest straw, convert the resultant goo to maltose (enzymatically). Add some water, hops and yeast and make some truly green beer from it. I'll bet it would be some tasty.
Think of the carbon credits. We could save the planet. Think about how cheap it would be to make. We could keep the poor drunk all the time.
We could call it "The Last Straw Malt-Like Beverage"
I can even see the marketing - "Cool, Crisp, Clean. With no aftertaste"
Oh wait. I think that's somebody else's line.