[eigenhombre]

Yes, many of us work at those companies. At my job we have what I would guess is a "medium" sized build-out in AWS. I asked our AWS support rep for tools to measure carbon impact -- ideally Cloudwatch metrics for type and amount of power consumed by an AWS resource. He said he'd pass it along (this was a couple years ago).

When we do clean house (e.g., destroying unneeded services/environments) it's largely based on reducing cost and complexity -- but cost is still a very poor proxy for low carbon.

I really like your "show me wind power to spare" API also.