The key thing is to embed it in the capital plan of departments and how they move forward. There isn't, per se, a separate tagged green amount in the sense that you embed it in a portfolio plan as your capital plan over the next 30 years and every action you take includes a carbon lens. Instead, what you often see is only a little bit more capital, but it's a savings over the life cycle of the building.
Usually it's a question of how you manage the capital budget versus the ongoing maintenance budget. We're also looking at particular challenges. As technology evolves and as solutions appear, then you could tackle different components, but we're finding the first step is to do an overall plan. You'll see some initiatives like putting in LED lighting where the payback is just two to three years, so it's a no-brainer.