It seems my mistake was searching for “green web hosting” instead of “green ISP.” The main problem with providing green Internet services appears to be in the data centres. However, I have found a company with a solution: they offset the emissions of the other suppliers in the chain. And they offer customised hosting packages, so I only pay for the resources I need. If their service is as good as it looks I’ll migrate all my domains over the next few weeks. Then this blog will have a permanent home.