To find microorganisms to degrade 7 kinds of polycarbonates prepared from waste carbon dioxide, U1 microbial consortium were discovered from Ulsook waste landfill in Busan, where degradation rate of PPC-PVL and PVL were 1.6＊10 EXP (２) PPC-PVL/(day L) and 3.4＊10 EXP (-２) g PVL/(day L), respectively. Y1 microorganisms from waste sewage treatment in Busan degraded PPC-PVL and PPC, where degradation rate of PPC-PVL and PPC were 1.9＊10 EXP (-２) g PPC-PVL/(day L) and 5.5 ＊10 EXP (-３) g PPC/(day L), respectively.