Honeywell announced that it has entered into a supply agreement with Asahi Glass Company Ltd. to increase production for HFO-1234yf, a new refrigerant for automobiles with a global warming potential (GWP) of less than 1. This GWP is 99.9% lower than that of the current refrigerant in use, HFC-134a, and even lower than the GWP of carbon dioxide. AGC will manufacture HFO-1234yf in Japan, and Honeywell will market the product to customers in the U.S, Europe and Asia. Under the agreement, AGC's production is expected to begin in mid-2015.