Yesterday I was on the trains again, this time down to York to train environmental champions for a public transport company. It was another beautiful early morning – this time misty where Monday was crystal clear, Durham Cathedral appeared lit golden behind the rising and evaporating trails of fog. The two sessions went well and the feedback good.

Since Monday, I’ve been mulling on an insight from Martin Blake of Royal Mail – what book value will high carbon buildings and infrastructure have in 5 or 10 years? Who will want to buy a ‘dirty legacy’? This applies to today’s client as well, although I’d thrown so much new stuff (ecological footprinting, carbon footprinting, climate change, sustainability, energy management etc) at the poor attendees that I thought this was one driver I would omit. As I write The Green Executive, I’m finding that sustainability is running deeper and deeper into the core of every organisation – everytime I think I’ve got it, there’s another new angle. That’s what I love about this job!