Mr President, I ask a further supplementary question. I would have thought that $30 billion would justify a better explanation than that. Australia has gone through another summer of bushfires and drought that scientists have linked to climate change, including in my home state of Tasmania. We know that these disasters are only going to get worse in the future. Isn't climate change are greater existential threat to Australia's security and wellbeing than tensions in the South China Sea? Why isn't the government spending $30 billion on doing something about climate change?