Via Lynne Kiesling I discovered this story about a data center in Helsinki being located underneath Uspenski Cathedral so that the waste heat from all of the computers can be used to keep the neighbourhood warm. Like Lynne I am impressed by Finnish initiative when it comes to environmental issues. But then I wondered which one of my Finnish friends had come up with the idea of putting something very hot in a cave beneath a church…

Come on, own up, I know it must have been one of you.