Thank you for the question.
The challenge in many types of infrastructure—and zero-emission buses are a wonderful example—is that there is a revenue source. In this case, it's the savings that are generated over time as you switch from diesel to electricity. I could say the same thing about our building retrofits program. It is similarly a way to try to retrofit buildings, make them more energy-efficient and over the long term create savings.
The problem with those types of projects is that the payback period is long and it's quite uncertain. It depends on the technology, on the speed of conversion, the reliability. So there are technological challenges. There are also commercial and market factors, what happens to the future price of both diesel and electricity, just to give an example.
What happens is that the private sector alone doesn't actually make those investments, even though they might over the long, long run be ROI-positive. The bridge that the bank fills.... To answer your question as asked, yes, I think the CIB plays a critical bridging role to making those projects happen by taking on some of the upfront risk and sharing in it with the private sector—not taking it on alone but sharing it together. That also drives investment and allows us to make projects happen certainly much faster than they would have, and many that wouldn't happen at all under purely commercial terms.