Cloud computing is an evolution in which IT
consumption and delivery are made available in a self-service
fashion via the Internet or internal network, with a flexible payas-you-go business model and requires a highly efficient and
scalable architecture. It can mainly provide three cloud services:
storage as a service, processing as a service and software as a
service, while infrastructure is very scalable and cost-effective to
run high-performance and enterprise computing and web
applications. Another powerful challenge in cloud computing is
in Mobile cloud computing, which is: combining mobile
computing and cloud computing technology. In this paper we
will review news techniques to achieve Green computing and
discuss the benefits of using cloud services for mobile
environment.