The good news is that change is happening, and it's happening very fast. Here in California, there's a very ambitious emissions target to cut emissions. In Hawaii, they're passing legislation to have 100 percent renewable energy by 2045. And governments are very ambitious around the world. In Costa Rica, they have committed to being carbon-neutral by 2021. In Ethiopia, the commitment is to be carbon-neutral by 2027. Apple have pledged that their factories in China will use renewable energy. And there is a race on at the moment to convert electricity from tidal and wave power, in order that we can leave the coal in the ground. And that change is both welcome and is happening very rapidly. But it's still not enough, and the political will is still not enough.