Design a Carbon Footprint Tracker for AWS Resources

This was for a position I have not heard of before, a prototype architect Was contacted by a recruiter and told about it, I def. was not prepared for leetcode type questions but was told , no no don't worry about it this is a prototype arch. position so no leetcode. Of course there was also leetcode besides this "system design" question "Design a system that tracks the carbon footprint of your AWS resources" I have never have had a design question like this before or ever heard of someone being asked it