Cloud computing, while offering numerous technical and operational benefits, is facing challenges in sustainability, with cloud data centers reportedly having a larger carbon footprint than the aviation industry. Ida Fürjesová and Niki Manoledaki from Grafana Labs addressed this issue at PromCon 2023 by showcasing a bottom-up approach to monitoring energy consumption and carbon emissions in cloud applications using tools like Kepler, Prometheus, and Grafana. Their session emphasized the concept of GreenOps, which prioritizes sustainability in cloud operations and can also lead to cost savings, enhanced app performance, and competitive advantages. Kepler, an eBPF energy monitoring tool, aggregates energy metrics and attributes power usage to processes and pods, exporting these metrics to Prometheus for visualization in Grafana. The session highlighted the potential for organizations to implement such practices to monitor and reduce their carbon footprint, and it encouraged participation in CNCF's Environmental Sustainability Technical Advisory Group for further collaboration and innovation in sustainable computing.