Provided are apparatus and method for managing a plurality of cloud centers that provide a virtual computing environment to a client. The method may include selecting a target cloud center from the plurality of cloud centers based on electricity costs and carbon emission costs of the plurality of cloud centers, and controlling the selected target cloud center so as to manage at least one virtual machine to provide the virtual computing environment to the client. For the selecting the target cloud center, a cloud center having a lowest electric cost and a lowest carbon emission cost may be selected from the plurality of cloud center as the target cloud center. Then, the selected target cloud center may be controlled so as to create a virtual machine.