I think, again, it's integration, working collaboratively with the levels of government. There's a keen interest there, so I think we need to harness the desire and willingness to work to get an integrated urban system. But we're going to need to work together to integrate it, so getting out of the silo mentalities and starting to talk about it is one challenge.
There's a lack of funds. As some of my colleagues have said, the funds tend to be sometimes specific to a technology. This is a bit more of a comprehensive approach, which could employ many technologies or many different energy efficiency systems; it's not a matter of picking a single one all of the time. I think that's another issue.
Another one is, again, that it has to come back to education. I think people get nervous when you say biomass or biogas and think “emissions” and “dirty”. It's not dirty; it's actually incredibly efficient. To capture gas at a landfill is probably one of the most efficient things you could do, but that's not really understood. I think we could take a role in getting that message out.