Sacramento Bee: Think California’s drought looks bad? Look to Australia for a reality check. The land of kangaroos and koalas is suffering its worst drought in history. It began in 2001, and it’s been bad enough to win a spooky name: the Millennium Drought. Australian leaders have responded aggressively to what they view as a permanent state caused by climate change. At the recent World Water Forum in Istanbul, Australian efforts were held up as a model for regions pondering a warmer, …