Little Alchemy Cheat Sheet
(beta)
carbon dioxide
carbon dioxide
Combined from:
human human   +   oxygen oxygen
plant plant   +   night night
tree tree   +   night night
Combines with:
cold cold   +   carbon dioxide carbon dioxide   =   dry ice dry ice
water water   +   carbon dioxide carbon dioxide   =   soda soda
juice juice   +   carbon dioxide carbon dioxide   =   soda soda