But again, an adaptation strategy is to enforce building codes, to design buildings properly and to prepare for possible inundation over parts of the city area. That's important because many of our ecosystems are already under pressure so, for example, there are some particular animals, such as Victoria's emblem which is the mountain pygmy possum which, if it warms up, has nowhere to go. There aren't any higher mountains, there's no additional habitat. So that's looking at potential extinction. Similarly, places such as Kakadu National Park can be put under severe stress from saltwater incursion.
Coral reefs are another example.
We know that when you get a sequence of high-temperature events corals can bleach, it's already occurred. And you are looking at an increase in the frequency of those bleaching events with the risk that corals might not be able to recover as quickly. That's what would happen but these changes are much, much faster than ecosystems are normally exposed to. If we think about, say, Australia's Great Barrier Reef, there's a very significant tourist industry based on that. Now, we don't know what effect damage to the reef would have on the tourist industry and we don't know what the adaptation strategies are, but we have a choice.