This article introduces a new way to measure how much carbon dioxide is produced by computer tasks. It aims to show how computational activities contribute to climate change. The authors created a tool called Green Algorithms, available online, that helps people calculate and report the carbon footprint of their computer work in an easy way. They tested this tool on tasks like particle physics, weather prediction, and language processing to see how much CO 2 was emitted. The researchers hope this tool will raise awareness and encourage more environmentally friendly computer practices.