Makes zero sense. Australia has one of the lowest population densities on the planet. I've heard that they blame global warming for recent droughts.
Australia has a very low population density. In part, that is because they live on the driest continent, and one that isn't particularly nutrient rich for plants (and therefore for livestock eating those plants).
This is how the global warming paranoia has been building. Everything is now blamed on global warming - floods, droughts, heat waves, blistering cold, thunderstorms, tornados, typhoons, hailstorms, excessive snowfall, no snowfall at all, first time snow ever (Kathmandu, Nepal), dormant volcanoes errupting, dormant volcanos not errupting, earthquakes, landslides, glacial melts, glacial build ups, animal migration, bird migration...
And there is no need to prove anything. Its just global warming.