First of all, I thank you for that very, very important question and observation. We are only beginning to see just what those costs might look like. We first have to determine exactly what kinds of impacts we're talking about.
When climate change migrations become a crisis of national security, the costs can be quite dramatic in terms of the loss of GDP, productivity, stability, public health costs, security costs and so on. When you get large portions of the world's population undergoing exactly the same types of pressures, the costs can be absolutely beyond imagination.
I think Dr. Pomeroy put it quite well in his statement when he said that we have many of the elements in place. We're one of the countries that are very fortunate to have university programs that have been publicly funded over a long period of time and that can allow us to get ahead of those costs. Clearly, for a very long time we've been saying that the cost of no action is much greater than the cost of acting on it. This is one way of acting on it where costs can be minimal compared with what the absolutely shattering economic and social impacts and mental health impacts could be if we don't.