This is really important to me. I'm currently looking to move all sites I'm responsible for to carbon-neutral (ideally directly renewable-powered) infrastructure. Obviously speed, efficiency, and cache proximity to the user are super -important factors as Phil outlined above, so any research Netlify can produce on the impact of this on power efficiency would be incredibly useful. In the meantime, it would be really helpful if an estimate could be made available of approximately how much of Netlify's resources are provided by which providers, so that the energy sources used by those providers can be taken into account. (Or better still, if Netlify wanted to do the maths based on those figures and publish a total carbon estimate as a percentage of total power usage.)