A Valley brewery is trying to cut down on its carbon dioxide emissions by 50% by using a new system to recycle carbon dioxide. Santan Brewing in Chandler produces about 50,000 barrels of beer a year. Half of that will now be made using a new system that recycles carbon dioxide. "Carbon dioxide is created during fermentation by yeast. Yeast creates two things--alcohol and carbon dioxide," said founder Anthony Canecchia. Typically, carbon dioxide is released from the tanks into the atmosphere. They have fans so it doesn't concentrate. "It's just wasted," said Canecchia. Canecchia bought a $100,000 machine from a startup in Austin called Earthly Labs. The system recaptures that CO2.