Data centers currently consume about 1% of global electricity, a figure expected to rise significantly by 2030, while the broader ICT ecosystem contributes 2% to global carbon emissions, equating it with the aviation industry. The transition from traditional on-premise data centers to cloud-based solutions is considered more environmentally friendly due to increased efficiency, with cloud providers like Google and Amazon implementing sustainability initiatives. Despite these advancements, the issue of "cloud waste" persists, stemming from idle and over-provisioned resources, with an estimated $17 billion spent on unnecessary Infrastructure as a Service (IaaS) in 2020. The rise of infrastructure as code has made cloud deployment more accessible, leading to potential cloud sprawl without adequate visibility and management. The responsibility falls on engineers to address this waste, with efforts underway to integrate carbon emission estimates into tools like Infracost, inviting experts to contribute knowledge and data sources to this endeavor.