AbstractDemand for clean products and services is increasing as society is becoming increasingly aware of climate change. In response, many enterprises are setting explicit sustainability goals and implementing initiatives to reduce carbon emissions. Quantification and disclosure of such goals and initiatives have become important marketing tools. As enterprises and individuals shift their workloads to the cloud, this drive toward quantification and disclosure will lead to demand for quantifiable green cloud services. Thus, we argue that cloud providers should offer a new class of green service, in addition to existing (energy-sourceoblivious) services. This new class would provide their clients with explicit service-level agreements (which we call Green SLAs) for the percentage of renewable energy used to run their workloads.
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