In this episode of Environment Variables, host Chris Adams is joined by Tammy Sukprasert, a PhD student at the University of Massachusetts Amherst, to dive deep into her research on carbon-aware computing. Tammy explores the concept of shifting computing workloads across time and space to reduce carbon emissions, focusing on the benefits and limitations of this approach. She explains how moving workloads to cleaner regions or delaying them until cleaner energy sources are available can help cut emissions, but also discusses the challenges that come with real-world constraints like server capacity and latency. Together they discuss the findings from her recent papers, including the differences between average and marginal carbon intensity signals and how they impact decision-making. The conversation highlights the complexity of achieving carbon savings and the need for better metrics and strategies in the world of software development.Learn more about our people:Chris Adams: LinkedIn | GitHub | WebsiteThanathorn (Tammy) Sukprasert: LinkedIn | GitHub | Google ScholarFind out more about the GSF:The Green Software Foundation Website Sign up to the Green Software Foundation NewsletterNews:On the Limitations of Carbon-Aware Temporal and Spatial Workload Shifting in the Cloud | Proceedings of the Nineteenth European Conference on Computer Systems [03:25]On the Implications of Choosing Average versus Marginal Carbon Intensity Signals on Carbon-aware Optimizations | Proceedings of the 15th ACM International Conference on Future and Sustainable Energy Systems [22:12] Resources:Tammy's GitHub [19:00]CarbonScaler: Leveraging Cloud Workload Elasticity for Optimizing Carbon-Efficiency | Proceedings of the ACM on Measurement and Analysis of Computing Systems [33:19]If you enjoyed this episode then please either:Follow, rate, and review on Apple PodcastsFollow and rate on SpotifyWatch our videos on The Green Software Foundation YouTube Channel!Connect with us on Twitter, Github and LinkedIn!TRANSCRIPTION BELOW:Tammy Sukprasert: With that one hour job with perfect knowledge of one year, we can reduce the carbon emission of the whole world by 37%.Chris Adams: Hello, and welcome to Environment Variables, brought to you by the Green Software Foundation. In each episode, we discuss the latest news and events surrounding green software. On our show,