In the first instance, and perhaps even before we develop strategies to combat the effects of climate change, we may need some of those Boeing 747 water bombers.
747 Supertanker - Wikipedia
One issue I can see for Australia is the question of where they can take off and land. For example the Millmerran International airport is not rated at anything larger than a twin engine turbo prop. I guess that most of the fires are within 300km of the coast and major airports. There may also be better access to water supplies too. I will look forward to seeing them water bomb in our region (assuming a fire of course) at less than 500m. About three large rainwater tanks in one trip (74000L)
Regards
Paul