David G. Victor

[On U.S. subnational climate action] The hardest thing that the cities are finding is transportation is really, really difficult to manage, because a lot of the tools are outside of their scope – the vehicles that are available. California cities are going to have an easier time because they're going to have a state that's leading on zero-emission vehicles.

[On U.S. subnational climate action] For all of the great things that are going on in these cities, it's only a small fraction of national emissions, and so it's really important that those cities that are pioneers, if you like, be much more focused on getting their pioneering to spread, and not just be thrilled with themselves about their pioneering status.

[On U.S. subnational climate action] One of the great priorities [is] to make sure there is license for the heartland to innovate and act.

We've seen a big shift in policy action on climate change to the heartland away from Washington, DC and to the cities and to the states.

Ultimately, the differences between the two candidates are huge. I think if we have a second Trump Administration we're going to see even more of the [climate] action shift to the state and local level, and if we see a Biden Administration we're going to see action at the state and local level, but hopefully more federal support.